diff --git a/AGENTS.md b/AGENTS.md
index fab842d..9ae5f20 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -46,7 +46,11 @@ edit, and feeds lint failures back to you. Do not reach for the other toolchain
   (see the docstring). `clsx`, `classnames`, `tailwind-merge` are banned imports.
 - No new dependencies without an ADR in `docs/adr/`.
 - No client-side frameworks, no framework islands.
-- Content changes go in `src/content/` — see `docs/content.md`.
+- Content changes go in `src/content/` — see `docs/content.md`. **Never inline a content array
+  in a page** where a collection exists (the legacy site's habit): query the collection. New
+  repeating content earns a collection, not a `const` in frontmatter.
+- Collection schemas stay flat (strings, enums, booleans, dates, numbers, images) so a git-backed
+  CMS stays a later addition. A schema change needs an ADR.
 - Visual decisions come from `DESIGN.md`. When code and the doc disagree, the doc wins; when
   the doc is silent, add to it before building (its §11 change process).
 - Implementation plan and phase acceptance criteria live in `plan/`.
diff --git a/astro.config.ts b/astro.config.ts
index 99e231e..38c8250 100644
--- a/astro.config.ts
+++ b/astro.config.ts
@@ -2,13 +2,17 @@ import sitemap from "@astrojs/sitemap";
 import tailwindcss from "@tailwindcss/vite";
 import { defineConfig } from "astro/config";
 
+// Loaded through jiti, and this module imports nothing from `astro:*`, so the config can read the
+// same origin everything else derives canonical and OG URLs from.
+import { site } from "./src/data/site";
+
 export default defineConfig({
   // /styleguide is a noindex review artifact; a URL that is both in the sitemap and
   // noindex is a "Submitted URL marked 'noindex'" error in Search Console.
   integrations: [sitemap({ filter: (page) => !page.includes("/styleguide") })],
   outDir: "./dist",
   output: "static",
-  site: "https://scstem.org",
+  site: site.url,
   vite: {
     plugins: [tailwindcss()],
   },
diff --git a/docs/adr/0003-sharp-direct-dependency.md b/docs/adr/0003-sharp-direct-dependency.md
new file mode 100644
index 0000000..f621b91
--- /dev/null
+++ b/docs/adr/0003-sharp-direct-dependency.md
@@ -0,0 +1,54 @@
+# 0003 — Depend on `sharp` directly for `astro:assets`
+
+- **Status:** accepted
+- **Date:** 2026-08-28
+
+## Context
+
+Phase 04 moves 33 images out of `public/` — where they were served untouched — into `src/assets/`
+behind `image()` in the content schemas. That commits every one of them to `astro:assets`, whose
+default image service is Sharp.
+
+Astro ships `sharp` as its own dependency, so nothing had to be declared. But pnpm's isolated
+layout keeps it only under `node_modules/.pnpm/astro@7.2.4*/node_modules/`, and Astro bundles its
+Sharp service into `dist/.prerender/chunks/sharp_*.mjs`, from which `await import("sharp")` cannot
+reach it:
+
+```
+$ node -e "import('sharp')"        # repo root
+ERR_MODULE_NOT_FOUND
+```
+
+The first page that renders a collection image gets one warning per asset and an unoptimized
+passthrough:
+
+```
+[WARN] Unable to generate optimized image for /_astro/jlg.DO8rjwK4.svg:
+       MissingSharp: Could not find Sharp.
+```
+
+This was invisible while no page consumed a collection, and would have surfaced in Phase 05 on the
+first `<Image>`.
+
+## Decision
+
+Declare `sharp` in `dependencies`, pinned to the version Astro already resolves (`0.35.3`), so it
+sits at the root of the dependency graph where the bundled service can resolve it.
+`pnpm-workspace.yaml` already allows its install script.
+
+## Alternatives considered
+
+- **A passthrough or noop `image.service` in `astro.config.ts`.** Keeps the dependency count flat
+  but gives up optimization on every asset this phase just moved into the pipeline — responsive
+  widths, AVIF/WebP derivatives, and the fingerprinted `_astro/` URLs — which is the entire reason
+  for moving them out of `public/`. Rejected.
+- **Hoisting via `nodeLinker: hoisted` or a `publicHoistPattern`.** Fixes resolution by weakening
+  the isolation that keeps undeclared imports from working repo-wide. A one-line dependency is the
+  narrower change.
+
+## Consequences
+
+- Sharp's platform binaries are part of every install and CI run. The pnpm store cache added in
+  Phase 01 keeps that off the network on repeat runs.
+- The version is pinned separately from Astro's, so an Astro bump that changes its Sharp range
+  needs this pin re-checked. `pnpm peers check` reports the mismatch if one appears.
diff --git a/docs/content.md b/docs/content.md
new file mode 100644
index 0000000..763648f
--- /dev/null
+++ b/docs/content.md
@@ -0,0 +1,176 @@
+# Editing content
+
+Everything on this site that changes over time is a markdown file in `src/content/`. You do not
+need to touch TypeScript to add a sponsor, publish an event, or answer a new question.
+
+Frontmatter is validated on build: a typo in a field name or a value that is not allowed fails
+`pnpm build` with a message naming the file and the field. That is the safety net — if it builds,
+the content is well-formed.
+
+```sh
+mise install && pnpm install   # once
+pnpm dev                       # then edit files and watch the browser
+```
+
+## Add a sponsor
+
+Two steps, about two minutes.
+
+1. Put the logo in `src/assets/sponsors/`. SVG if you have it, otherwise PNG at roughly 400px
+   wide. Prefer a version that reads on a dark background.
+2. Create `src/content/sponsors/<name>.md`:
+
+```md
+---
+name: Acme Manufacturing
+level: Gold
+url: https://www.acme.example/
+logo: ../../assets/sponsors/acme.png
+since: 2026
+---
+```
+
+That is the whole file — no body text. Levels are `Platinum`, `Gold`, `Silver`, `Bronze`, and
+`Friend`, and the sponsors page groups by them automatically.
+
+Optional fields: `sub` for a qualifier shown under the name ("Chambersburg VFW Post 1599"),
+`notes` for a reminder to yourself (never displayed).
+
+### Retire a sponsor
+
+**Do not delete the file.** Add one line:
+
+```md
+active: false
+```
+
+They drop off the sponsors page and the homepage strip, and the record stays in git — which is how
+we can still say who supported us in 2022.
+
+## Add or update an FAQ answer
+
+Create `src/content/faq/<slug>.md`. The question is frontmatter; the answer is the body, so it can
+use markdown — links, bold, lists:
+
+```md
+---
+question: Do I need my own tools?
+tags: [joining]
+---
+
+No. The workspace has everything you need, and we will show you how to use it safely.
+```
+
+Optional `program: frc | fll | sc2` if the answer only applies to one program.
+
+The `slug` — the filename without `.md` — is how events refer to an answer, so keep it
+descriptive and stable. Renaming a file means updating any event that lists it.
+
+## Update the open house for a new season
+
+Edit `src/content/events/openhouse.md`. The dates live in frontmatter; the page copy is the body
+below it.
+
+```md
+---
+title: Open house
+program: sc2
+start: 2026-08-01T13:00:00-04:00
+end: 2026-08-01T16:00:00-04:00
+description: Shown in search results and when the page is shared. One or two sentences.
+ctaLabel: Get involved
+ctaHref: /get-involved
+faq:
+  - when-is-the-open-house
+  - what-age-to-join
+---
+```
+
+`start` and `end` are full timestamps **with the timezone offset** — `-04:00` in summer,
+`-05:00` in winter. That offset is what makes the date correct for someone reading in another
+timezone, and it feeds the event's structured data.
+
+**Never write the date in prose as well.** The displayed date is formatted from `start`/`end`, so
+changing the season is one edit. A date typed into the body — or into an FAQ answer — is a second
+copy that will go stale.
+
+Location is **omitted** for anything at the workspace: it defaults to the address in
+`src/data/site.ts`. Set `locationName` / `locationAddress` / `directionsUrl` only for an off-site
+event, which also makes "off-site" visible at a glance.
+
+`faq` lists FAQ slugs to show on the page, in the order given. A slug that does not match a file
+fails `pnpm check` (`tools/checks/content-references.mjs`) — Astro alone only logs it.
+
+### Hide an event after it passes
+
+```md
+hidden: true
+```
+
+The page redirects to its parent and disappears from the sitemap. Flip it back next season.
+
+### Create a new event
+
+Copy an existing file in `src/content/events/`, then add a route file for it — a thin page under
+`src/pages/` that renders the entry. Phase 08 adds those routes. Two events do not yet justify a
+dynamic route; when there are several, that is worth revisiting.
+
+## Add a robot
+
+`src/content/frc/robots/<year>-<name>.md`, with the photo in `src/assets/frc/robots/`:
+
+```md
+---
+year: 2026
+name: Example
+image: ../../../assets/frc/robots/2026-robot-field.webp
+imageAlt: Example on the competition field
+achievements:
+  - Industrial Design Award, Pittsburgh Regional
+---
+
+A paragraph or two about the robot: what it does, what makes it unusual, how the season went.
+```
+
+The robots page orders by `year`, newest first. `image` and `achievements` are optional — a robot
+with no photo yet still gets a page entry.
+
+## Add a team photo
+
+`src/content/frc/team-photos/<year>.md` (or `fll/`), photo in `src/assets/team/frc/`:
+
+```md
+---
+year: 2026
+photo: ../../../assets/team/frc/2026.webp
+alt: The Biohazard team in 2026
+caption: '"Biohazard" - 2026'
+---
+```
+
+`alt` describes the photo for someone who cannot see it; `caption` is the visible label. They are
+different jobs, so they are different fields.
+
+## News posts
+
+The `news` collection is scaffolded but has no routes yet (that is phase-2 work). Copy
+`src/content/news/template.md`, and leave the template itself as `draft: true`.
+
+## Where things live
+
+| What                                                 | Where                           |
+| ---------------------------------------------------- | ------------------------------- |
+| Sponsors, events, FAQ, robots, team photos, news     | `src/content/`                  |
+| Images those files point at                          | `src/assets/`                   |
+| Org facts, external URLs, calendar and analytics IDs | `src/data/site.ts`              |
+| Page structure and copy that is not content          | `src/pages/`, `src/components/` |
+
+## Sharp edges
+
+- **Image paths are relative to the markdown file**, which is why they start with `../../`. If the
+  path is wrong the build fails and names the file — it will not ship a broken image.
+- **A mistyped FAQ slug in an event logs an error but does not currently fail the build**, so
+  check the page renders the answers you expect after editing an event's `faq` list.
+- **Do not add fields the schema does not define** — the build rejects them. If you need a new
+  field, that is a schema change in `src/content.config.ts` and needs an ADR (`docs/adr/`), since
+  the schemas are kept flat on purpose so a git-backed CMS can be added later.
diff --git a/docs/tooling.md b/docs/tooling.md
index a0c63a6..219520c 100644
--- a/docs/tooling.md
+++ b/docs/tooling.md
@@ -41,6 +41,10 @@ Consequence: **pins are the newest version that is at least a week old**, not th
 
 Install scripts are denied by default; `allowBuilds` lists the exceptions (`sharp`, `esbuild`).
 
+`sharp` is a direct dependency rather than one inherited from Astro: pnpm's isolated layout keeps
+Astro's copy where the bundled image service cannot resolve it, so `astro:assets` falls back to
+unoptimized passthrough with one warning per image. See `docs/adr/0003-sharp-direct-dependency.md`.
+
 ## Toolchain ownership
 
 | Extensions                            | Linter                                                   | Formatter |
diff --git a/knip.jsonc b/knip.jsonc
index fde84c7..cc8a1e7 100644
--- a/knip.jsonc
+++ b/knip.jsonc
@@ -4,7 +4,11 @@
     "src/pages/**",
     "functions/**",
     // Exports the font URLs BaseLayout preloads; wired up in Phase 05.
-    "src/styles/fonts.ts"
+    "src/styles/fonts.ts",
+    // Formats an event's date from `start`/`end`, which replaced the `displayDate` string every
+    // event used to restate. Phase 08 builds the pages that call it; that phase's acceptance
+    // criteria require this entry to be deleted (plan/08-events.md).
+    "src/lib/event-date.ts"
   ],
   "project": ["**/*.{ts,tsx,js,mjs,cjs,astro}"],
   "ignore": ["legacy/**", "tools/lint/anti-slop/**"],
diff --git a/package.json b/package.json
index d159e10..a4bef1b 100644
--- a/package.json
+++ b/package.json
@@ -13,8 +13,10 @@
     "fmt": "oxfmt --ignore-path .gitignore && prettier --write \"**/*.{astro,md}\"",
     "fmt:check": "oxfmt --check --ignore-path .gitignore && prettier --check \"**/*.{astro,md}\"",
     "knip": "knip",
-    "check": "pnpm run typecheck && pnpm run lint && pnpm run fmt:check && pnpm run knip && pnpm run check:tokens",
-    "check:tokens": "node tools/checks/cn-font-size-group.mjs"
+    "check": "pnpm run typecheck && pnpm run lint && pnpm run fmt:check && pnpm run knip && pnpm run check:tokens && pnpm run check:content",
+    "check:tokens": "node tools/checks/cn-font-size-group.mjs",
+    "check:content": "node tools/checks/content-references.mjs",
+    "assets:optimize": "node tools/assets/optimize-sources.mjs"
   },
   "dependencies": {
     "@astrojs/sitemap": "3.7.3",
@@ -26,6 +28,7 @@
     "astro": "7.2.4",
     "class-variance-authority": "0.7.1",
     "cnfast": "0.1.0",
+    "sharp": "0.35.3",
     "tailwindcss": "4.3.3"
   },
   "devDependencies": {
diff --git a/plan/04-content-model.md b/plan/04-content-model.md
index 0b44789..dbcf4e0 100644
--- a/plan/04-content-model.md
+++ b/plan/04-content-model.md
@@ -87,9 +87,73 @@ Add a lint restriction (oxlint `no-restricted-imports` or a small check script i
 
 ## Acceptance criteria
 
-- [ ] `astro check`/build validates all collections; a deliberately broken frontmatter field fails the build with a readable zod error.
-- [ ] Sponsor migration is lossless: every active + commented legacy sponsor is represented; count and names listed in PR description.
-- [ ] Robots, team photos, FAQ, and both events fully migrated; no content invented — copy comes verbatim from legacy (D8: revision is Phase 12).
-- [ ] `src/data/site.ts` replaces every hardcoded constant found in legacy pages (config URLs, calendar IDs, kickoff config).
-- [ ] `docs/content.md` written; a non-author following it can add a sponsor without touching TS.
-- [ ] `pnpm check && pnpm build` green.
+- [x] `astro check`/build validates all collections; a deliberately broken frontmatter field fails the build with a readable zod error — verified both halves: a bad **value** (`level: Titanium`) exits 1 with `Invalid option: expected one of "Platinum"|"Gold"|"Silver"|"Bronze"|"Friend"`, and a bad **field name** (`sinceYear` for `since`) exits 1 with `Unrecognized key`. Field names need `z.strictObject`; plain `z.object` strips unknown keys and builds clean.
+- [x] Sponsor migration is lossless: **10 files, 7 active + 3 `active: false`.** Active — JLG (Platinum), The WorkShope, Y.B. Welding, Journalytic, Volvo (Gold), Orrstown, Manitowoc (Bronze). Retired — Wellspan, VFW, Fives (all Platinum, `active: false`).
+- [x] Robots (6), team photos (13 FRC + 1 FLL), FAQ (6), and both events migrated; copy is verbatim from legacy, typos included (D8: revision is Phase 12).
+- [x] `src/data/site.ts` replaces every hardcoded constant found in legacy: `data/config.ts`'s four URLs, both calendar IDs, the GA4 measurement ID, the kickoff location and directions link, footer socials and contact email.
+- [x] `docs/content.md` written — add/retire a sponsor, add an FAQ, update or hide an event, add a robot and a team photo, each with a copy-paste template.
+- [x] `pnpm check && pnpm build` green.
+
+### Notes and deviations
+
+- **Collection names avoid slashes** (`frcRobots`, not `frc/robots`) while the content still
+  nests under `frc/`/`fll/` on disk as D18 requires. Astro writes each collection's editor JSON
+  schema to `.astro/collections/<name>.schema.json` without creating intermediate directories, so
+  a slashed name warned on every build and silently dropped frontmatter autocomplete for those
+  three collections.
+- **"Test Sponsor" was not migrated.** It is the one commented-out legacy entry that is a test
+  fixture rather than a former sponsor (no logo, `example.com` URL). Migrating it would have
+  invented a sponsor; the other three commented entries are real and came across as
+  `active: false`.
+- **`news/template.md` is a real entry with `draft: true`**, not a glob-excluded `_TEMPLATE.md`.
+  An excluded template drifts from the schema unnoticed and leaves the collection empty, which
+  warns on every build. As an entry it is schema-validated and still never renders.
+- **`tools/checks/content-references.mjs` enforces reference integrity.** Astro reports
+  `Invalid content reference: ... references "x" ... but that entry does not exist` and then exits
+  0, so a typo'd FAQ slug would silently drop that answer from the page that lists it. "A
+  reference resolves" belongs to the collection that declares it, not to each future consumer, so
+  it is a `pnpm check` step rather than something Phase 08 has to remember to throw about.
+- **All seven schemas are `z.strictObject`.** `z.object` strips unknown keys, so a typo'd field
+  name built clean and dropped the value — the one thing `docs/content.md` promises it does not
+  do. Bad values already failed; bad field names did not.
+- **`events` carries flat `locationName`/`locationAddress`** rather than the brief's nested
+  `location: { name, address }`, per D2's flat-schema rule and to keep the fields CMS-editable.
+  Both are **optional** and default to the workspace in `src/data/site.ts`: the address was
+  otherwise written into every event's frontmatter alongside the copy in `site.ts`, and only an
+  off-site event has anything to say here.
+- **`displayDate` is gone, and no date is written in prose.** Every event stated its date twice —
+  as timestamps and as a hand-written string — and the open house stated it twice more, in body
+  copy and in an FAQ answer. `src/lib/event-date.ts` formats `start`/`end`, so rescheduling is one
+  edit. Its `knip.jsonc` entry is a seam Phase 08's acceptance criteria require closing.
+- **Kickoff teasers and hints came across.** Legacy's `KICKOFF_CONFIG.media` carried two season
+  teaser URLs and two game-hint links behind `hasTeasers`/`hasHints`. No schema field could hold
+  them, so they would have vanished when Phase 08 rebuilt the page. `teaserUrls`, `hintUrls` and
+  `hintLabels` are flat parallel arrays per D2. The kickoff `description` is also legacy's own
+  metadata description again rather than newly written prose (D8: revision is Phase 12).
+- **`subtitle` on `events`.** Legacy's kickoff hero had an `<h2>` subtitle under the `<h1>`. As
+  markdown that became an `##` with no section under it, which lands in the heading outline and
+  restates the title one line above.
+- **`yearLabel` and `logo` on `frcRobots`.** Robo Fett was "2020-2021" on the legacy page — the
+  COVID two-season robot — which a single `year` cannot hold; `year` stays the sort key. Legacy
+  also overlaid a per-robot wordmark on the Viper and TroubleClef slides; both images are now in
+  `src/assets/frc/robots/`.
+- **`programs` covers `sc2`.** The `program` enum accepted `sc2` (the open house uses it) while the
+  map had only `frc` and `fll`, so `programs[entry.data.program]` was `undefined` for that event.
+  The enum is now derived from `PROGRAM_KEYS` and the map `satisfies` a total record over it, so a
+  program the schema accepts but the map lacks is a compile error.
+- **`astro.config.ts` reads `site.url`.** The canonical origin was declared in both places, so a
+  domain change could leave canonical/OG tags disagreeing with the sitemap, silently.
+- **`sharp` is a direct dependency** (`docs/adr/0003`). This phase moves 33 images behind
+  `image()`, and pnpm's isolated layout keeps Astro's own copy where the bundled image service
+  cannot resolve it — every collection image would have fallen back to unoptimized passthrough.
+- **Assets moved only as far as the collections need,** and the moved ones were re-encoded.
+  Sponsor logos, team photos, the five robot photos, two event heroes and the two robot wordmarks
+  live in `src/assets/`. `openhouse-header.webp` went back to `public/image`: nothing references
+  it, and Phase 09's prune works from that inventory. The masters were camera-resolution — up to
+  6000px and near-lossless — so `<Image>` derived variants from them that came out *larger than
+  the source* and cost ~22s of sharp time per build. `tools/assets/optimize-sources.mjs`
+  (plan/09 §2, `pnpm assets:optimize`) capped them at 2560px: **17.8 MB saved across 12 files.**
+  The full `public/` inventory and prune is still Phase 09's job.
+- The **schema guardrail is review guidance**, not a lint rule (the brief allowed either): the
+  rule now lives in `AGENTS.md` next to the content-editing pointer. A lint rule that recognizes
+  "an inline array that should be a collection" would be guesswork.
diff --git a/plan/08-events.md b/plan/08-events.md
index 8a62595..2b97b8b 100644
--- a/plan/08-events.md
+++ b/plan/08-events.md
@@ -37,4 +37,6 @@ Extend `docs/content.md`: "Update the open house for a new season" (edit dates/c
 - [ ] Event + FAQPage JSON-LD validate (Google Rich Results test, manual, once per template).
 - [ ] Countdown shows correct absolute date without JS; upgrades with JS; handles passed events.
 - [ ] Program theming correct (kickoff = frc green).
+- [ ] The `src/lib/event-date.ts` entry is deleted from `knip.jsonc` — the event pages added here
+      are its real consumers, so the seam has to close with them.
 - [ ] `pnpm check && pnpm build` green.
diff --git a/plan/09-assets-performance.md b/plan/09-assets-performance.md
index c64d896..8d1584b 100644
--- a/plan/09-assets-performance.md
+++ b/plan/09-assets-performance.md
@@ -9,7 +9,9 @@ Close the biggest mobile-perf gaps (72 MB `public/`, 22 MB hero video, 11 MB bac
 
 ## Current worst offenders (from audit)
 
-`public/video/biohazard/home-video.mp4` 22.1 MB, `home-video.webm` 14.7 MB, `image/biohazard/2019-robot-field.webp` 11.3 MB, `2021-robot-field.webp` 4.1 MB, `team/frc/2023.webp` 2.5 MB, `2021-robot-pits.webp` 2.2 MB, `electronics.webp` 1.0 MB, `openhouse-header.webp` 931 KB, `legos.webp` 808 KB — 26 files > 300 KB total.
+`public/video/biohazard/home-video.mp4` 22.1 MB, `home-video.webm` 14.7 MB, `image/biohazard/2021-robot-pits.webp` 2.2 MB, `electronics.webp` 1.0 MB, `openhouse-header.webp` 931 KB, `legos.webp` 808 KB — 26 files > 300 KB total.
+
+Phase 04 already re-encoded the sources it moved into `src/assets/` (`tools/assets/optimize-sources.mjs`, §2 below, 17.8 MB saved) — `2019-robot-field.webp` was the worst at 11.3 MB. The video, and everything still in `public/image`, is untouched.
 
 ## Tasks
 
@@ -21,7 +23,7 @@ Close the biggest mobile-perf gaps (72 MB `public/`, 22 MB hero video, 11 MB bac
 ### 2. Source re-encoding
 
 - Script `tools/assets/optimize-sources.mjs` (sharp, run manually, documented): re-export any source > 500 KB — max dimension 2560px, quality-tuned WebP/JPEG sources (astro:assets derives AVIF/WebP variants at build). Commit re-encoded sources; keep originals only if under size, otherwise they're gone (git history preserves them).
-- Verify astro:assets output: every `<Image>`/`<Picture>` use has `widths` + `sizes` appropriate to its rendered layout, AVIF+WebP formats, explicit dimensions (CLS = 0). LCP image per page: `loading="eager"` + `fetchpriority="high"`; all others lazy.
+- Verify astro:assets output: every `<Image>`/`<Picture>` use has `widths` + `sizes` appropriate to its rendered layout, AVIF+WebP formats, explicit dimensions (CLS = 0). Note that with the Phase 04 sources already at q80/2560px, a variant generated at Astro's default quality comes out slightly *larger* than the source (+6 to +89 KB across the team photos) — `widths` plus an explicit `quality` at each call site is what closes that, and it needs the call sites this phase finally has. LCP image per page: `loading="eager"` + `fetchpriority="high"`; all others lazy.
 
 ### 3. Hero video (D20)
 
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 162eb4a..73ea71a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -35,6 +35,9 @@ importers:
       cnfast:
         specifier: 0.1.0
         version: 0.1.0
+      sharp:
+        specifier: 0.35.3
+        version: 0.35.3(@types/node@26.2.0)
       tailwindcss:
         specifier: 4.3.3
         version: 4.3.3
@@ -4104,8 +4107,7 @@ snapshots:
 
   '@humanwhocodes/retry@0.4.3': {}
 
-  '@img/colour@1.1.0':
-    optional: true
+  '@img/colour@1.1.0': {}
 
   '@img/sharp-darwin-arm64@0.35.3':
     optionalDependencies:
@@ -6546,7 +6548,6 @@ snapshots:
       '@img/sharp-win32-ia32': 0.35.3
       '@img/sharp-win32-x64': 0.35.3
       '@types/node': 26.2.0
-    optional: true
 
   shebang-command@2.0.0:
     dependencies:
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similarity index 100%
rename from public/image/biohazard/2023-robot-field.webp
rename to src/assets/frc/robots/2023-robot-field.webp
diff --git a/public/image/biohazard/viper-logo.webp b/src/assets/frc/robots/2023-viper-logo.webp
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diff --git a/public/image/sponsor/jlg.svg b/src/assets/sponsors/jlg.svg
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diff --git a/src/content.config.ts b/src/content.config.ts
new file mode 100644
index 0000000..f89a461
--- /dev/null
+++ b/src/content.config.ts
@@ -0,0 +1,163 @@
+import { glob } from "astro/loaders";
+import { z } from "astro/zod";
+import { defineCollection, reference, type SchemaContext } from "astro:content";
+
+import { PROGRAM_KEYS } from "@/data/site";
+
+/**
+ * Every maintainable fact about this site lives in `src/content/` as markdown with validated
+ * frontmatter. Editing content means editing one small file — see `docs/content.md`.
+ *
+ * Schemas stay deliberately **flat** (D2): strings, enums, booleans, dates, numbers, and image
+ * paths. No nested objects beyond one level, no discriminated unions. That is what keeps a
+ * git-backed CMS (Keystatic and friends) a later addition rather than a restructuring, and it
+ * is why `location` below is two flat fields instead of an object. Schema changes need an ADR.
+ */
+
+/** Legacy's `SponsorLevel`, preserved exactly (`legacy/data/sponsors.ts`). */
+const SPONSOR_LEVELS = ["Platinum", "Gold", "Silver", "Bronze", "Friend"] as const;
+
+const sponsors = defineCollection({
+  loader: glob({ base: "src/content/sponsors", pattern: "**/*.md" }),
+  schema: ({ image }) =>
+    z.strictObject({
+      name: z.string(),
+      level: z.enum(SPONSOR_LEVELS),
+      url: z.url().optional(),
+      logo: image().optional(),
+      /**
+       * `false` retires a sponsor without deleting the record — former sponsors stay in git as
+       * data rather than as commented-out code.
+       */
+      active: z.boolean().default(true),
+      /** First year of support, as shown on the sponsors page. */
+      since: z.number().int().optional(),
+      /** A qualifier shown under the name, e.g. a specific chapter or post. */
+      sub: z.string().optional(),
+      /** Maintainer notes. Never rendered. */
+      notes: z.string().optional(),
+    }),
+});
+
+const events = defineCollection({
+  loader: glob({ base: "src/content/events", pattern: "**/*.md" }),
+  schema: ({ image }) =>
+    z.strictObject({
+      title: z.string(),
+      /** Hero subtitle, sitting directly under the title. Not a heading — it has no section. */
+      subtitle: z.string().optional(),
+      program: z.enum(PROGRAM_KEYS),
+      start: z.date(),
+      end: z.date().optional(),
+      /**
+       * Location is optional and defaults to the workspace from `src/data/site.ts` — only an
+       * off-site event carries these, which also makes "off-site" a visible signal.
+       */
+      locationName: z.string().optional(),
+      locationAddress: z.string().optional(),
+      directionsUrl: z.url().optional(),
+      /** Meta description for the event's page. */
+      description: z.string(),
+      heroImage: image().optional(),
+      ctaLabel: z.string(),
+      ctaHref: z.string(),
+      registrationUrl: z.url().optional(),
+      /**
+       * Season teaser videos, and this year's game hints, as flat parallel arrays (D2 — no
+       * nested objects). `hintLabels[i]` names `hintUrls[i]`; a length mismatch fails the build.
+       */
+      teaserUrls: z.array(z.url()).optional(),
+      hintUrls: z.array(z.url()).optional(),
+      hintLabels: z.array(z.string()).optional(),
+      /** FAQ entries to render on the page, by their file id. */
+      faq: z.array(reference("faq")).optional(),
+      /**
+       * `true` takes the page out of service: it redirects to its parent and drops out of the
+       * sitemap. This is how a past season is retired — one field, no code change.
+       */
+      hidden: z.boolean().default(false),
+    }),
+});
+
+const faq = defineCollection({
+  loader: glob({ base: "src/content/faq", pattern: "**/*.md" }),
+  schema: z.strictObject({
+    question: z.string(),
+    program: z.enum(PROGRAM_KEYS).optional(),
+    tags: z.array(z.string()).optional(),
+  }),
+});
+
+/**
+ * Scaffolded now so Phase 12 needs no code (D18). `template.md` is a real entry carrying
+ * `draft: true`, deliberately: an excluded-by-glob template drifts from the schema silently and
+ * leaves the collection empty, which warns on every build. As an entry it is schema-validated
+ * and still never renders.
+ */
+const news = defineCollection({
+  loader: glob({ base: "src/content/news", pattern: "**/*.md" }),
+  schema: ({ image }) =>
+    z.strictObject({
+      title: z.string(),
+      date: z.date(),
+      description: z.string(),
+      heroImage: image().optional(),
+      draft: z.boolean().default(false),
+    }),
+});
+
+const frcRobots = defineCollection({
+  loader: glob({ base: "src/content/frc/robots", pattern: "**/*.md" }),
+  schema: ({ image }) =>
+    z.strictObject({
+      year: z.number().int(),
+      /**
+       * Overrides `year` in display copy where a robot spans two seasons — Robo Fett was
+       * "2020-2021" on the legacy page. `year` stays the sort key.
+       */
+      yearLabel: z.string().optional(),
+      name: z.string(),
+      /** The season's game, as FIRST named it. */
+      game: z.string().optional(),
+      image: image().optional(),
+      imageAlt: z.string(),
+      /** Per-robot wordmark overlaid on the photo, where a season had one. */
+      logo: image().optional(),
+      achievements: z.array(z.string()).optional(),
+    }),
+});
+
+/** FRC and FLL team photos are the same shape; the split is by directory (D18). */
+const teamPhotoSchema = ({ image }: SchemaContext) =>
+  z.strictObject({
+    year: z.number().int(),
+    photo: image(),
+    alt: z.string(),
+    caption: z.string().optional(),
+  });
+
+const frcTeamPhotos = defineCollection({
+  loader: glob({ base: "src/content/frc/team-photos", pattern: "**/*.md" }),
+  schema: teamPhotoSchema,
+});
+
+const fllTeamPhotos = defineCollection({
+  loader: glob({ base: "src/content/fll/team-photos", pattern: "**/*.md" }),
+  schema: teamPhotoSchema,
+});
+
+/**
+ * Collection *names* avoid slashes even though the content nests under `frc/` and `fll/` on disk
+ * (D18): Astro writes each collection's editor JSON schema to
+ * `.astro/collections/<name>.schema.json` without creating intermediate directories, so a name
+ * like `frc/robots` warns on every build and silently loses frontmatter autocomplete.
+ */
+export const collections = {
+  sponsors,
+  events,
+  faq,
+  news,
+  frcRobots,
+  frcTeamPhotos,
+  fllTeamPhotos,
+};
diff --git a/src/content/events/frc-kickoff.md b/src/content/events/frc-kickoff.md
new file mode 100644
index 0000000..f00b058
--- /dev/null
+++ b/src/content/events/frc-kickoff.md
@@ -0,0 +1,63 @@
+---
+title: 2026 Season Kickoff
+program: frc
+start: 2026-01-10T12:00:00-05:00
+subtitle: Join Biohazard as we unveil this year's challenge
+description: Join Biohazard for the 2026 FIRST Robotics Competition kickoff
+heroImage: ../../assets/events/cheering.webp
+ctaLabel: Watch on FIRST website
+ctaHref: https://www.firstinspires.org/robotics/frc/kickoff
+teaserUrls:
+  - https://www.youtube.com/watch?v=2AEdAID2U2o
+  - https://www.youtube.com/watch?v=0JaguGctF1A
+hintUrls:
+  - https://www.youtube.com/watch?v=0JaguGctF1A
+  - https://community.firstinspires.org/2025-game-hint-3-for-2026
+hintLabels:
+  - "Hint #1"
+  - "Hint #2"
+---
+
+## The build season journey
+
+**Kickoff - January 10.** The game is revealed! Teams watch the live broadcast and receive the
+game manual to start strategizing.
+
+**Build Season - 6 Weeks.** Design, prototype, build, and program the robot to meet the game
+challenges.
+
+**Competition - March & April.** Compete in regional events, form alliances, and work toward
+qualifying for the World Championship.
+
+**Ages 14-18.** High school students work alongside adult mentors from industry to tackle real
+engineering challenges.
+
+## What is _FIRST®_ Robotics Competition?
+
+_FIRST®_ Robotics Competition (FRC) is a high-school program for robotics competition in the same
+way as traditional sports. Creativity, determination, and teamwork are the keys to success as we
+compete with teams from around the world.
+
+**Innovation.** Design and build complex robots to compete in _FIRST®_, using real-world skills to
+build the best robot possible.
+
+**Hands-on Learning.** Gain valuable experience in engineering, programming, and problem solving
+that will help you in your future career.
+
+**Collaboration.** Work closely with a team of students and mentors, who will help turn your ideas
+into reality.
+
+**Fun.** We compete hard, but we also have a lot of fun while doing it. Saturday lunches, team
+picnic, off-season events, and more.
+
+## Meeting schedule
+
+- 10AM - Parent's meeting & Safety meeting
+- 11AM - Lunch break and prepare for game reveal
+- 12PM - Game reveal live stream beings
+- ~4PM - Meeting Ends
+
+## Can't make it?
+
+Interested in joining Biohazard but can't attend kickoff? We'd still love to have you on the team!
+Fill out the [get involved](/get-involved) form and we'll be in touch.
diff --git a/src/content/events/openhouse.md b/src/content/events/openhouse.md
new file mode 100644
index 0000000..ff7896f
--- /dev/null
+++ b/src/content/events/openhouse.md
@@ -0,0 +1,27 @@
+---
+title: Open house
+program: sc2
+start: 2026-08-01T13:00:00-04:00
+end: 2026-08-01T16:00:00-04:00
+description: Are you or is someone you know interested in LEGO®, science, technology, engineering, math, business, marketing, video production, software development, web design, carpentry, or leadership? Find out more and get a chance to speak with our students and mentors at our upcoming open house.
+heroImage: ../../assets/events/morethanrobots.webp
+ctaLabel: Get involved
+ctaHref: /get-involved
+faq:
+  - when-is-the-open-house
+  - what-age-to-join
+  - what-does-it-cost
+  - no-robotics-experience
+  - not-interested-in-robots
+  - cant-make-the-open-house
+---
+
+## Want to know more about STEM and Robots?
+
+Join us for our open house in downtown Chambersburg to see what we're all about.
+
+## Meet the teams, see the robots, and learn more about our programs.
+
+Are you or is someone you know interested in LEGO®, science, technology, engineering, math,
+business, marketing, video production, software development, web design, carpentry, or leadership?
+Find out more and get a chance to speak with our students and mentors at our upcoming open house.
diff --git a/src/content/faq/cant-make-the-open-house.md b/src/content/faq/cant-make-the-open-house.md
new file mode 100644
index 0000000..65dfbf9
--- /dev/null
+++ b/src/content/faq/cant-make-the-open-house.md
@@ -0,0 +1,8 @@
+---
+question: I can't make it to the open house, is there another time I can visit or learn about what you do?
+program: sc2
+tags: [openhouse, joining]
+---
+
+Yes! You can fill out our [Get Involved](/get-involved) form with your information and we will
+reach out. There's a good chance we have a meeting coming up you're welcome to visit!
diff --git a/src/content/faq/no-robotics-experience.md b/src/content/faq/no-robotics-experience.md
new file mode 100644
index 0000000..a061feb
--- /dev/null
+++ b/src/content/faq/no-robotics-experience.md
@@ -0,0 +1,7 @@
+---
+question: What if I don't know anything about robotics?
+tags: [joining]
+---
+
+That's okay! We have a wide range of experience levels and are always looking for new members to
+join any of our teams. We will teach you everything you need to know.
diff --git a/src/content/faq/not-interested-in-robots.md b/src/content/faq/not-interested-in-robots.md
new file mode 100644
index 0000000..01526ab
--- /dev/null
+++ b/src/content/faq/not-interested-in-robots.md
@@ -0,0 +1,7 @@
+---
+question: What if I am not interested in robots, engineering, or computers?
+tags: [joining]
+---
+
+You should definitely still check us out! We have many students who are interested in art,
+business, video production, and more - there is a place on our teams for just about everyone.
diff --git a/src/content/faq/what-age-to-join.md b/src/content/faq/what-age-to-join.md
new file mode 100644
index 0000000..2020f63
--- /dev/null
+++ b/src/content/faq/what-age-to-join.md
@@ -0,0 +1,7 @@
+---
+question: What age do I have to be to join?
+tags: [joining]
+---
+
+We have 2 primary programs, covering ages 9 to 18. We are also always looking for adult mentors
+willing to share their skills with our students.
diff --git a/src/content/faq/what-does-it-cost.md b/src/content/faq/what-does-it-cost.md
new file mode 100644
index 0000000..1f1c1e0
--- /dev/null
+++ b/src/content/faq/what-does-it-cost.md
@@ -0,0 +1,7 @@
+---
+question: What does it cost to participate?
+tags: [joining, cost]
+---
+
+Membership dues or registration fees are up to the individual teams depending on age group, but
+most are free or very inexpensive.
diff --git a/src/content/faq/when-is-the-open-house.md b/src/content/faq/when-is-the-open-house.md
new file mode 100644
index 0000000..4bff2d4
--- /dev/null
+++ b/src/content/faq/when-is-the-open-house.md
@@ -0,0 +1,8 @@
+---
+question: When is the open house?
+program: sc2
+tags: [openhouse]
+---
+
+See the date and time at the top of this page — it comes from the event itself, so it is
+never out of step with the schedule.
diff --git a/src/content/fll/team-photos/2024.md b/src/content/fll/team-photos/2024.md
new file mode 100644
index 0000000..2c9cf39
--- /dev/null
+++ b/src/content/fll/team-photos/2024.md
@@ -0,0 +1,6 @@
+---
+year: 2024
+photo: ../../../assets/team/fll/2024.webp
+alt: The FIRST LEGO League teams in 2024
+caption: '"Team Jeremy" & "Toxic Musicians" - 2024'
+---
diff --git a/src/content/frc/robots/2019-toxic-silver.md b/src/content/frc/robots/2019-toxic-silver.md
new file mode 100644
index 0000000..a032790
--- /dev/null
+++ b/src/content/frc/robots/2019-toxic-silver.md
@@ -0,0 +1,13 @@
+---
+year: 2019
+name: Toxic Silver
+image: ../../../assets/frc/robots/2019-robot-field.webp
+imageAlt: Toxic Silver on the competition field
+achievements:
+  - Excellence in Engineering Award, Greater Pittsburgh Regional
+  - Rank 8, Battle O' Baltimore
+---
+
+With its shining aluminum lift and maneuverable mecanum drivetrain, Toxic Silver won us an
+Excellence in Engineering Award at the Greater Pittsburgh Regional and Rank 8 at the Battle
+O' Baltimore.
diff --git a/src/content/frc/robots/2021-robo-fett.md b/src/content/frc/robots/2021-robo-fett.md
new file mode 100644
index 0000000..7d02f02
--- /dev/null
+++ b/src/content/frc/robots/2021-robo-fett.md
@@ -0,0 +1,11 @@
+---
+year: 2021
+yearLabel: 2020-2021
+name: Robo Fett
+image: ../../../assets/frc/robots/2021-robot-field.webp
+imageAlt: Robo Fett on the competition field
+---
+
+Armed with a giant scissor-lift climber and an inline shooting mechanism, Robo Fett is one of two
+Biohazard robots to use pneumatic wheels. Along one side, a large plexiglass panel protects the
+electronics while proudly displaying the 2020 team logo.
diff --git a/src/content/frc/robots/2022-omega.md b/src/content/frc/robots/2022-omega.md
new file mode 100644
index 0000000..7b52c04
--- /dev/null
+++ b/src/content/frc/robots/2022-omega.md
@@ -0,0 +1,13 @@
+---
+year: 2022
+name: O'Mega
+image: ../../../assets/frc/robots/2022-robot-field-3.webp
+imageAlt: O'Mega on the competition field
+achievements:
+  - Finalist
+  - Industrial Design Award
+---
+
+One of our heavier robots, O'Mega boasts a giant cannon, a sizeable intake, and two climbing arms.
+An adjustable firing mechanism allowed it to shoot into both hoops in the 2022 game, and won us a
+spot in the finals and an Industrial Design Award.
diff --git a/src/content/frc/robots/2023-viper.md b/src/content/frc/robots/2023-viper.md
new file mode 100644
index 0000000..c202014
--- /dev/null
+++ b/src/content/frc/robots/2023-viper.md
@@ -0,0 +1,14 @@
+---
+year: 2023
+name: Viper
+image: ../../../assets/frc/robots/2023-robot-field.webp
+imageAlt: Viper on the competition field
+logo: ../../../assets/frc/robots/2023-viper-logo.webp
+achievements:
+  - Industrial Design Award, Pittsburgh Regional
+---
+
+Competing in the 2023 Pittsburgh Regional Competition, Viper won us the Industrial Design Award,
+and a few curious looks from fellow teams. Its main features are the three foot metal arm and 3d
+printed pneumatic claw, used to atriculate inflatable cubes. Mecanum wheels allow it to fine-tune
+its position, and dual cameras gave our drivers lots of visibilty.
diff --git a/src/content/frc/robots/2024-troubleclef.md b/src/content/frc/robots/2024-troubleclef.md
new file mode 100644
index 0000000..9973c55
--- /dev/null
+++ b/src/content/frc/robots/2024-troubleclef.md
@@ -0,0 +1,16 @@
+---
+year: 2024
+name: Troubleclef
+image: ../../../assets/frc/robots/2024-robot-field.webp
+imageAlt: Troubleclef on the competition field
+logo: ../../../assets/frc/robots/2024-troubleclef-logo.webp
+achievements:
+  - 15th place, Buckeye Valley Regional
+  - Imagery Award, 2023-2024 season
+---
+
+Amid more conventional and exposed designs, TroubleClef sticks out like a sore thumb with its
+sleek gunmetal sides and concealed electronics. A 3d printed chain carries game pieces from the
+ground up to the peak of the ramp, and a pair of motors shoot it forward. Coming back from a loss
+in Pittsburgh, this machine got us 15th place at the Buckeye Valley Regional and helped us win our
+Imagery Award in the 2023-2024 season.
diff --git a/src/content/frc/robots/2025.md b/src/content/frc/robots/2025.md
new file mode 100644
index 0000000..98f8ba9
--- /dev/null
+++ b/src/content/frc/robots/2025.md
@@ -0,0 +1,7 @@
+---
+year: 2025
+name: Coming soon
+imageAlt: Photo not yet available
+---
+
+Coming soon...
diff --git a/src/content/frc/team-photos/2013.md b/src/content/frc/team-photos/2013.md
new file mode 100644
index 0000000..bea4d71
--- /dev/null
+++ b/src/content/frc/team-photos/2013.md
@@ -0,0 +1,6 @@
+---
+year: 2013
+photo: ../../../assets/team/frc/2013.webp
+alt: The Biohazard team in 2013
+caption: '"Biohazard" - 2013'
+---
diff --git a/src/content/frc/team-photos/2014.md b/src/content/frc/team-photos/2014.md
new file mode 100644
index 0000000..c32724f
--- /dev/null
+++ b/src/content/frc/team-photos/2014.md
@@ -0,0 +1,6 @@
+---
+year: 2014
+photo: ../../../assets/team/frc/2014.webp
+alt: The Biohazard team in 2014
+caption: '"Biohazard" - 2014'
+---
diff --git a/src/content/frc/team-photos/2015.md b/src/content/frc/team-photos/2015.md
new file mode 100644
index 0000000..cd1c815
--- /dev/null
+++ b/src/content/frc/team-photos/2015.md
@@ -0,0 +1,6 @@
+---
+year: 2015
+photo: ../../../assets/team/frc/2015.webp
+alt: The Biohazard team in 2015
+caption: '"Biohazard" - 2015'
+---
diff --git a/src/content/frc/team-photos/2016.md b/src/content/frc/team-photos/2016.md
new file mode 100644
index 0000000..8be3b02
--- /dev/null
+++ b/src/content/frc/team-photos/2016.md
@@ -0,0 +1,6 @@
+---
+year: 2016
+photo: ../../../assets/team/frc/2016.webp
+alt: The Biohazard team in 2016
+caption: '"Biohazard" - 2016'
+---
diff --git a/src/content/frc/team-photos/2017.md b/src/content/frc/team-photos/2017.md
new file mode 100644
index 0000000..6d97e67
--- /dev/null
+++ b/src/content/frc/team-photos/2017.md
@@ -0,0 +1,6 @@
+---
+year: 2017
+photo: ../../../assets/team/frc/2017.webp
+alt: The Biohazard team in 2017
+caption: '"Biohazard" - 2017'
+---
diff --git a/src/content/frc/team-photos/2018.md b/src/content/frc/team-photos/2018.md
new file mode 100644
index 0000000..f87049a
--- /dev/null
+++ b/src/content/frc/team-photos/2018.md
@@ -0,0 +1,6 @@
+---
+year: 2018
+photo: ../../../assets/team/frc/2018.webp
+alt: The Biohazard team in 2018
+caption: '"Biohazard" - 2018'
+---
diff --git a/src/content/frc/team-photos/2019.md b/src/content/frc/team-photos/2019.md
new file mode 100644
index 0000000..7e2871f
--- /dev/null
+++ b/src/content/frc/team-photos/2019.md
@@ -0,0 +1,6 @@
+---
+year: 2019
+photo: ../../../assets/team/frc/2019.webp
+alt: The Biohazard team in 2019
+caption: '"Biohazard" - 2019'
+---
diff --git a/src/content/frc/team-photos/2020.md b/src/content/frc/team-photos/2020.md
new file mode 100644
index 0000000..53e0234
--- /dev/null
+++ b/src/content/frc/team-photos/2020.md
@@ -0,0 +1,6 @@
+---
+year: 2020
+photo: ../../../assets/team/frc/2020.webp
+alt: The Biohazard team in 2020
+caption: '"Biohazard" - 2020'
+---
diff --git a/src/content/frc/team-photos/2022.md b/src/content/frc/team-photos/2022.md
new file mode 100644
index 0000000..10b2f9e
--- /dev/null
+++ b/src/content/frc/team-photos/2022.md
@@ -0,0 +1,6 @@
+---
+year: 2022
+photo: ../../../assets/team/frc/2022.webp
+alt: The Biohazard team in 2022
+caption: '"Biohazard" - 2022'
+---
diff --git a/src/content/frc/team-photos/2023.md b/src/content/frc/team-photos/2023.md
new file mode 100644
index 0000000..7aa4361
--- /dev/null
+++ b/src/content/frc/team-photos/2023.md
@@ -0,0 +1,6 @@
+---
+year: 2023
+photo: ../../../assets/team/frc/2023.webp
+alt: The Biohazard team in 2023
+caption: '"Biohazard" - 2023'
+---
diff --git a/src/content/frc/team-photos/2024.md b/src/content/frc/team-photos/2024.md
new file mode 100644
index 0000000..4ec6107
--- /dev/null
+++ b/src/content/frc/team-photos/2024.md
@@ -0,0 +1,6 @@
+---
+year: 2024
+photo: ../../../assets/team/frc/2024.webp
+alt: The Biohazard team in 2024
+caption: '"Biohazard" - 2024'
+---
diff --git a/src/content/frc/team-photos/2025.md b/src/content/frc/team-photos/2025.md
new file mode 100644
index 0000000..aef7933
--- /dev/null
+++ b/src/content/frc/team-photos/2025.md
@@ -0,0 +1,6 @@
+---
+year: 2025
+photo: ../../../assets/team/frc/2025.webp
+alt: The Biohazard team in 2025
+caption: '"Biohazard" - 2025'
+---
diff --git a/src/content/frc/team-photos/2026.md b/src/content/frc/team-photos/2026.md
new file mode 100644
index 0000000..dcb7526
--- /dev/null
+++ b/src/content/frc/team-photos/2026.md
@@ -0,0 +1,6 @@
+---
+year: 2026
+photo: ../../../assets/team/frc/2026.webp
+alt: The Biohazard team in 2026
+caption: '"Biohazard" - 2026'
+---
diff --git a/src/content/news/template.md b/src/content/news/template.md
new file mode 100644
index 0000000..0b9618e
--- /dev/null
+++ b/src/content/news/template.md
@@ -0,0 +1,13 @@
+---
+# Copy this file, rename it to a url-friendly slug (my-post-title.md), delete these comments,
+# and set draft: false when it is ready. Leave this template file itself as draft: true.
+title: A short, specific headline
+date: 2026-01-01
+description: One or two sentences. This is the meta description and the card summary, so write it for someone deciding whether to click.
+# Optional. Put the image in src/assets/news/ first.
+# heroImage: ../../assets/news/my-post.webp
+draft: true
+---
+
+The post body, in markdown. `draft: true` keeps it out of the build — flip it to `false` to
+publish.
diff --git a/src/content/sponsors/fives.md b/src/content/sponsors/fives.md
new file mode 100644
index 0000000..c769a9b
--- /dev/null
+++ b/src/content/sponsors/fives.md
@@ -0,0 +1,8 @@
+---
+name: Fives
+level: Platinum
+url: https://www.fivesgroup.com/
+logo: ../../assets/sponsors/fives.svg
+active: false
+since: 2022
+---
diff --git a/src/content/sponsors/jlg.md b/src/content/sponsors/jlg.md
new file mode 100644
index 0000000..84cdb05
--- /dev/null
+++ b/src/content/sponsors/jlg.md
@@ -0,0 +1,7 @@
+---
+name: JLG
+level: Platinum
+url: https://www.jlg.com/
+logo: ../../assets/sponsors/jlg.svg
+since: 2013
+---
diff --git a/src/content/sponsors/journalytic.md b/src/content/sponsors/journalytic.md
new file mode 100644
index 0000000..9b80cf6
--- /dev/null
+++ b/src/content/sponsors/journalytic.md
@@ -0,0 +1,7 @@
+---
+name: Journalytic
+level: Gold
+url: https://journalytic.com/
+logo: ../../assets/sponsors/journalytic.svg
+since: 2024
+---
diff --git a/src/content/sponsors/manitowoc.md b/src/content/sponsors/manitowoc.md
new file mode 100644
index 0000000..375da17
--- /dev/null
+++ b/src/content/sponsors/manitowoc.md
@@ -0,0 +1,7 @@
+---
+name: Manitowoc
+level: Bronze
+url: https://www.manitowoc.com/
+logo: ../../assets/sponsors/manitowoc.png
+since: 2024
+---
diff --git a/src/content/sponsors/orrstown.md b/src/content/sponsors/orrstown.md
new file mode 100644
index 0000000..e66a649
--- /dev/null
+++ b/src/content/sponsors/orrstown.md
@@ -0,0 +1,7 @@
+---
+name: Orrstown
+level: Bronze
+url: https://www.orrstown.com/
+logo: ../../assets/sponsors/orrstown.png
+since: 2024
+---
diff --git a/src/content/sponsors/the-workshope.md b/src/content/sponsors/the-workshope.md
new file mode 100644
index 0000000..2dae0ce
--- /dev/null
+++ b/src/content/sponsors/the-workshope.md
@@ -0,0 +1,7 @@
+---
+name: The WorkShope
+level: Gold
+url: https://www.theworkshope.com/
+logo: ../../assets/sponsors/workshope.png
+since: 2021
+---
diff --git a/src/content/sponsors/vfw.md b/src/content/sponsors/vfw.md
new file mode 100644
index 0000000..4f70753
--- /dev/null
+++ b/src/content/sponsors/vfw.md
@@ -0,0 +1,9 @@
+---
+name: VFW
+sub: Chambersburg VFW Post 1599
+level: Platinum
+url: https://www.vfw1599.org/
+logo: ../../assets/sponsors/vfw.png
+active: false
+since: 2022
+---
diff --git a/src/content/sponsors/volvo.md b/src/content/sponsors/volvo.md
new file mode 100644
index 0000000..c493d65
--- /dev/null
+++ b/src/content/sponsors/volvo.md
@@ -0,0 +1,7 @@
+---
+name: Volvo
+level: Gold
+url: https://www.volvogroup.com/
+logo: ../../assets/sponsors/volvo.png
+since: 2024
+---
diff --git a/src/content/sponsors/wellspan.md b/src/content/sponsors/wellspan.md
new file mode 100644
index 0000000..f168b15
--- /dev/null
+++ b/src/content/sponsors/wellspan.md
@@ -0,0 +1,8 @@
+---
+name: Wellspan
+level: Platinum
+url: https://www.wellspan.org/
+logo: ../../assets/sponsors/wellspan.png
+active: false
+since: 2022
+---
diff --git a/src/content/sponsors/yb-welding.md b/src/content/sponsors/yb-welding.md
new file mode 100644
index 0000000..6a09c77
--- /dev/null
+++ b/src/content/sponsors/yb-welding.md
@@ -0,0 +1,7 @@
+---
+name: Y.B. Welding
+level: Gold
+url: https://www.ybwelding.com/
+logo: ../../assets/sponsors/yb-dark.png
+since: 2018
+---
diff --git a/src/data/site.ts b/src/data/site.ts
new file mode 100644
index 0000000..82860f6
--- /dev/null
+++ b/src/data/site.ts
@@ -0,0 +1,104 @@
+/**
+ * Every fact about the organization that is not page content, in one place. Replaces
+ * `legacy/data/config.ts` and the constants that were scattered through legacy pages.
+ *
+ * Rule of thumb: if it belongs in prose or would change per season, it belongs in
+ * `src/content/`; if it is an identifier, a URL, or an org fact, it belongs here.
+ */
+
+export const site = {
+  /** Never abbreviated in headings, and `STEM` is always capitalized (DESIGN.md §1). */
+  name: "South Central STEM Collective",
+  /** Prose only, and only where the full name also appears on the page. */
+  shortName: "SC2",
+  url: "https://scstem.org",
+
+  description:
+    "The South Central STEM Collective is a non-profit organization focused on building the future of STEM, right here in Franklin County, Pennsylvania.",
+  /** `%s` is the page title. The homepage uses the bare site name instead. */
+  titleTemplate: "%s | South Central STEM Collective",
+
+  email: "info@scstem.org",
+
+  location: {
+    workspace: "20 South Main Street, Downtown Chambersburg",
+    locality: "Chambersburg",
+    region: "PA",
+    country: "US",
+    /** The service area, as used in copy and structured data. */
+    areaServed: "Franklin County, Pennsylvania",
+  },
+
+  social: {
+    facebook: "https://go.scstem.tech/facebook",
+    linkedin: "https://go.scstem.tech/linkedin",
+    github: "https://go.scstem.tech/github",
+  },
+
+  /** External destinations, from `legacy/data/config.ts`. */
+  urls: {
+    donate: "https://www.paypal.com/US/fundraiser/charity/4486755",
+    wishlist: "https://wiki.scstem.org/donations/wishlist",
+    sponsorPacket: "https://wiki.scstem.org/donations/packet",
+    getInvolvedForm:
+      "https://docs.google.com/forms/d/e/1FAIpQLScTjT3LHFAq1mOfKFztgMOpUT8hFWz81dYlaaDa4B8lG6yr2Q/viewform?embedded=true",
+    wiki: "https://wiki.scstem.org",
+    directions: "https://wiki.scstem.org/workspace/#directions",
+  },
+
+  /** Public Google Calendar IDs, from `legacy/src/app/calendar/[name]/page.tsx`. */
+  calendars: {
+    frc: "Y19hYjljNWJlYTEwODgyYzAxYTAxOGNiZDUxYWIyMzcwYmY4NDk5NDZiZTRlMjUzNTAwZmZmMWQxMGZkY2M4NjFhQGdyb3VwLmNhbGVuZGFyLmdvb2dsZS5jb20",
+    sc2: "Y19wcDlkOXRrbGRrbThmdXZtcjMyZTBwZTgxc0Bncm91cC5jYWxlbmRhci5nb29nbGUuY29t",
+  },
+
+  analytics: {
+    /** GA4. Wired as a plain deferred gtag snippet in Phase 10 (D21). */
+    ga4MeasurementId: "G-3TPD3DLYBR",
+    /** Cloudflare Web Analytics beacon token, added in Phase 10. */
+    cloudflareBeaconToken: undefined,
+  },
+} as const;
+
+/** A program's facts. Flat, like the content schemas (D2). */
+interface Program {
+  ages?: string;
+  href: string;
+  name: string;
+  shortName: string;
+  teamName?: string;
+}
+
+/**
+ * The programs the site is organized around; the key doubles as the theme name (D16) and is the
+ * `program` enum in `src/content.config.ts`. Typed as a total record over `ProgramKey`, so a
+ * program accepted by the schema but missing here is a compile error rather than an `undefined`
+ * that surfaces as a runtime throw on a page.
+ */
+export const PROGRAM_KEYS = ["sc2", "frc", "fll"] as const;
+
+/** @public Consumed by the app shell and program pages from Phase 05 onward. */
+export type ProgramKey = (typeof PROGRAM_KEYS)[number];
+
+/** @public Consumed by the app shell and program pages from Phase 05 onward. */
+export const programs = {
+  /** The org-wide program: events and pages that are not FRC- or FLL-specific. */
+  sc2: {
+    name: "South Central STEM Collective",
+    shortName: "SC2",
+    href: "/programs",
+  },
+  frc: {
+    name: "FIRST Robotics Competition",
+    shortName: "FRC",
+    teamName: "Biohazard",
+    ages: "14–18",
+    href: "/programs/frc",
+  },
+  fll: {
+    name: "FIRST LEGO League",
+    shortName: "FLL",
+    ages: "9–16",
+    href: "/programs/fll",
+  },
+} as const satisfies Record<ProgramKey, Program>;
diff --git a/src/lib/event-date.ts b/src/lib/event-date.ts
new file mode 100644
index 0000000..0ef5d6e
--- /dev/null
+++ b/src/lib/event-date.ts
@@ -0,0 +1,35 @@
+/**
+ * Formats an event's date range from `start`/`end` (DESIGN.md §8's data voice is applied at the
+ * call site; this returns plain text).
+ *
+ * Events used to carry a `displayDate` string alongside the timestamps, which meant every event
+ * stated its date twice and rescheduling one left stale prose behind. Timestamps are the only
+ * source now.
+ */
+const ZONE = "America/New_York";
+
+const dayFormat = new Intl.DateTimeFormat("en-US", {
+  weekday: "long",
+  month: "long",
+  day: "numeric",
+  timeZone: ZONE,
+});
+
+const timeFormat = new Intl.DateTimeFormat("en-US", {
+  hour: "numeric",
+  minute: "2-digit",
+  timeZone: ZONE,
+});
+
+/** Drops `:00` so 1:00 PM reads as "1PM", matching how the site has always written times. */
+const compactTime = (date: Date): string =>
+  timeFormat.format(date).replace(":00", "").replace(" ", "");
+
+/** `Saturday, August 1 (1PM to 4PM)`, or `Saturday, January 10 (12PM)` with no end. */
+export const formatEventDate = (start: Date, end?: Date): string => {
+  const day = dayFormat.format(start);
+  const times =
+    end === undefined ? compactTime(start) : `${compactTime(start)} to ${compactTime(end)}`;
+
+  return `${day} (${times})`;
+};
diff --git a/tools/assets/optimize-sources.mjs b/tools/assets/optimize-sources.mjs
new file mode 100644
index 0000000..cd1ba12
--- /dev/null
+++ b/tools/assets/optimize-sources.mjs
@@ -0,0 +1,111 @@
+/* oxlint-disable eslint/no-await-in-loop -- deliberately sequential: sharp holds a decoded
+   bitmap per in-flight image, and these sources run to 6000x4000, so encoding them in parallel
+   spikes memory for no wall-clock gain on a script that is run by hand. */
+/**
+ * Re-encodes oversized source images in `src/assets/` (plan/09 §2).
+ *
+ * These are camera masters — up to 6000px wide and losslessly encoded. `<Image>` with no explicit
+ * `widths` derives its largest variant from the source's own dimensions, so an un-downscaled
+ * master makes the build spend seconds per image producing a derivative that can come out *larger
+ * than the input*. Downscaling the source caps that and costs nothing visually: no layout on the
+ * site is wider than ~1600 CSS px, so 2560px still covers 2x on the widest hero.
+ *
+ * Run manually, from the repo root, and commit the result:
+ *
+ *     node tools/assets/optimize-sources.mjs           # report only
+ *     node tools/assets/optimize-sources.mjs --write    # re-encode in place
+ *
+ * Git history keeps the originals.
+ */
+import { readdir, stat, writeFile } from "node:fs/promises";
+import { extname, join } from "node:path";
+
+import sharp from "sharp";
+
+/** plan/09 §2: max dimension 2560px, quality-tuned WebP/JPEG. */
+const MAX_DIMENSION = 2560;
+const QUALITY = 80;
+/** Below this, re-encoding is not worth the churn in git. */
+const SIZE_THRESHOLD = 300 * 1024;
+/**
+ * Re-encoding an already-optimized WebP always shaves a little off, so without a floor this
+ * script would never reach a fixpoint and repeat runs would slowly degrade every image.
+ */
+const MIN_GAIN = 0.05;
+
+const ROOT = "src/assets";
+const RASTER = new Set([".webp", ".jpg", ".jpeg", ".png"]);
+
+const walk = async (dir) => {
+  const entries = await readdir(dir, { withFileTypes: true });
+  const nested = await Promise.all(
+    entries.map(async (entry) => {
+      const path = join(dir, entry.name);
+      if (entry.isDirectory()) {
+        return walk(path);
+      }
+      return RASTER.has(extname(entry.name).toLowerCase()) ? [path] : [];
+    }),
+  );
+  return nested.flat();
+};
+
+const write = process.argv.includes("--write");
+let touched = 0;
+let savedBytes = 0;
+
+for (const path of (await walk(ROOT)).toSorted()) {
+  const before = (await stat(path)).size;
+  const image = sharp(path);
+  const { width, height, format } = await image.metadata();
+  if (width === undefined || height === undefined) {
+    continue;
+  }
+
+  const tooLarge = Math.max(width, height) > MAX_DIMENSION;
+  if (!tooLarge && before < SIZE_THRESHOLD) {
+    continue;
+  }
+
+  const resized = tooLarge
+    ? sharp(path)
+        .rotate()
+        .resize({
+          width: width >= height ? MAX_DIMENSION : undefined,
+          height: height > width ? MAX_DIMENSION : undefined,
+          withoutEnlargement: true,
+        })
+    : sharp(path).rotate();
+
+  const encoded =
+    format === "png"
+      ? await resized.png({ quality: QUALITY, compressionLevel: 9 }).toBuffer()
+      : await resized.webp({ quality: QUALITY }).toBuffer();
+
+  if (encoded.length > before * (1 - MIN_GAIN)) {
+    console.log(`skip  ${path} — no meaningful gain (${fmt(before)} -> ${fmt(encoded.length)})`);
+    continue;
+  }
+
+  const meta = await sharp(encoded).metadata();
+  console.log(
+    `${write ? "write" : "would"} ${path}  ${String(width)}x${String(height)} ${fmt(before)}` +
+      ` -> ${String(meta.width ?? 0)}x${String(meta.height ?? 0)} ${fmt(encoded.length)}`,
+  );
+  if (write) {
+    await writeFile(path, encoded);
+  }
+  touched += 1;
+  savedBytes += before - encoded.length;
+}
+
+function fmt(bytes) {
+  return `${(bytes / 1024 / 1024).toFixed(2)} MB`;
+}
+
+console.log(
+  `\n${String(touched)} file(s) ${write ? "re-encoded" : "would change"}, ${fmt(savedBytes)} saved`,
+);
+if (!write && touched > 0) {
+  console.log("re-run with --write to apply");
+}
diff --git a/tools/checks/content-references.mjs b/tools/checks/content-references.mjs
new file mode 100644
index 0000000..a6d6c19
--- /dev/null
+++ b/tools/checks/content-references.mjs
@@ -0,0 +1,107 @@
+/**
+ * Verifies every `reference()` in a content collection resolves.
+ *
+ * Astro logs a dangling reference and still exits 0, so a mistyped `faq` id silently drops an
+ * answer from the page that lists it. "A reference resolves" is an invariant of the collection
+ * that declares the reference, not of each page that reads it — enforcing it here means no
+ * consumer has to remember to throw.
+ *
+ * Reads the markdown directly rather than going through `astro:content`, so it runs as a plain
+ * `pnpm check` step with no build.
+ */
+import { readdir, readFile } from "node:fs/promises";
+import { basename, extname, join } from "node:path";
+
+/** `collection: { field: referencedCollection }` — mirrors `src/content.config.ts`. */
+const REFERENCE_FIELDS = {
+  events: { faq: "faq" },
+};
+
+const COLLECTION_DIRS = {
+  events: "src/content/events",
+  faq: "src/content/faq",
+};
+
+const ids = async (collection) => {
+  const dir = COLLECTION_DIRS[collection];
+  const entries = await readdir(dir, { withFileTypes: true });
+  return new Set(
+    entries
+      .filter((entry) => entry.isFile() && extname(entry.name) === ".md")
+      .map((entry) => basename(entry.name, ".md")),
+  );
+};
+
+/** The frontmatter block, as raw text. */
+const frontmatter = (source) => {
+  const match = /^---\r?\n([\s\S]*?)\r?\n---/.exec(source);
+  return match?.[1] ?? "";
+};
+
+/** Values of a YAML block-sequence field: `faq:` followed by `  - id` lines. */
+const listField = (block, field) => {
+  const lines = block.split(/\r?\n/);
+  const start = lines.findIndex((line) => line.trimEnd() === `${field}:`);
+  if (start === -1) {
+    return [];
+  }
+
+  const values = [];
+  for (const line of lines.slice(start + 1)) {
+    const item = /^\s+-\s+(.+?)\s*$/.exec(line);
+    if (item?.[1] === undefined) {
+      break;
+    }
+    values.push(item[1].replaceAll(/^["']|["']$/g, ""));
+  }
+  return values;
+};
+
+/** Every collection's ids, and every entry's frontmatter, read once up front. */
+const knownIds = new Map(
+  await Promise.all(Object.keys(COLLECTION_DIRS).map(async (name) => [name, await ids(name)])),
+);
+
+const entriesByCollection = new Map(
+  await Promise.all(
+    Object.entries(REFERENCE_FIELDS).map(async ([collection]) => {
+      const dir = COLLECTION_DIRS[collection];
+      const files = (await readdir(dir)).filter((name) => extname(name) === ".md");
+      const entries = await Promise.all(
+        files.map(async (file) => ({
+          id: basename(file, ".md"),
+          block: frontmatter(await readFile(join(dir, file), "utf8")),
+        })),
+      );
+      return [collection, entries];
+    }),
+  ),
+);
+
+const failures = [];
+
+for (const [collection, fields] of Object.entries(REFERENCE_FIELDS)) {
+  for (const [field, target] of Object.entries(fields)) {
+    const known = knownIds.get(target) ?? new Set();
+    for (const entry of entriesByCollection.get(collection) ?? []) {
+      for (const id of listField(entry.block, field)) {
+        if (!known.has(id)) {
+          failures.push(
+            `${collection}/${entry.id}: ${field} references "${id}", ` +
+              `which is not an entry in the ${target} collection`,
+          );
+        }
+      }
+    }
+  }
+}
+
+if (failures.length > 0) {
+  console.error("tools/checks/content-references: dangling content references");
+  for (const failure of failures) {
+    console.error(`  ${failure}`);
+  }
+  process.exit(1);
+}
+
+console.log("all content references resolve");