# garden-astro

Astro rebuild of the digital garden at `garden.c0smere.net`, replacing
Quartz v4. Content stays in the Obsidian vault (`Digital_Garden/` folder);
this repo is only the rendering pipeline.

## URL compatibility

Built to be a drop-in replacement — every URL on the live Quartz site
resolves identically here (verified against the live sitemap, 102/102):

- case preserved, spaces become `-`, hyphens/em-dashes kept
- leaf pages: `/Folder/Note-Name` (`build.format: 'file'` + nginx
  `try_files $uri $uri.html`)
- folder indexes: `/Folder/` (from `Folder/index.md`, or a synthetic
  listing page when no index exists)

## Obsidian compatibility (`src/lib/remark-obsidian.mjs`)

- `[[wikilinks]]` with aliases/anchors, resolved vault-path-first then by
  basename; unresolved links degrade to plain text
- `![[image embeds]]` and relative `![md](images)` both rewrite to flat
  `/assets/<name>` URLs; `scripts/copy-assets.mjs` resolves the files
  (Digital_Garden first, then vault-wide) and copies them in at build time
- `> [!type]` callouts, KaTeX math, mermaid (lazy-loaded client-side only
  on pages that use it), shiki dual light/dark themes
- `draft:` frontmatter excluded, including Quartz-style quoted `"true"`

## Build

```sh
GARDEN_CONTENT=/path/to/vault/Digital_Garden npm run build
```

Defaults to the kotov vault copy. On cyrion use `deploy/build.sh`
(containerized node:24, vault mounted read-only), then
`docker compose -f deploy/docker-compose.yml up -d` serves `dist/` on
port 18100, proxied as `garden.c0smere.net` (NPM public + Caddy internal).

## marimo notebooks (`/notebooks`)

Notebooks from the marimo server (`/home/nox/docker/marimo/notebooks/`) can
be published into the garden. **A notebook publishes only if it opts in**, by
carrying this HTML comment in one of its markdown cells — invisible in the
rendered page, greppable in the `.py` source:

```
<!-- garden:publish
title: Dream of Spotification
description: A decade of Spotify history, worked two ways.
order: 30
-->
```

Only the `garden:publish` line is required. Optional keys: `title`,
`description`, `order` (sort weight, default 100), `slug` (URL override,
default derived from the filename), `timeout` (export seconds, default 600).
Delete the marker to unpublish — the next export run removes the page.

This is deliberately default-deny: garden.c0smere.net is public and the
export bakes each notebook's **executed output** into the page, not just its
code. `deploy/export-notebooks.py` also carries a `NEVER_PUBLISH` list
(`genome_*`, coursework) as a second latch, so a marker pasted into one of
those refuses loudly instead of publishing.

Pipeline:

1. `deploy/export-notebooks.py` (own timer, `garden-notebooks-export.timer`,
   every 30 min; own lock) scans for markers and runs each opted-in notebook
   in a one-shot `marimo:latest` container — same image and `.env` as the
   live server, so it hits the real databases. Output lands in
   `notebooks-export/<slug>.html` plus an `index.json`.
   - Cached on notebook content: a run after no edits does no work.
   - Per-notebook timeout, and a failure keeps the previous export and
     continues. A broken notebook can't take the garden down.
   - It runs against a throwaway *copy* of the notebook dir, so notebooks
     that write scratch files don't dirty the notebooks git repo.
2. `scripts/copy-notebooks.mjs` stages those into `public/nb/<slug>.html`.
3. Astro reads `index.json` (`src/lib/notebooks.mjs`) to build `/notebooks`
   and `/notebooks/<slug>`, which wrap the raw export in an iframe with the
   garden chrome, plus the sidebar section.

The raw export is at `/nb/<slug>.html`, deliberately *not* under
`/notebooks` — with `build.format: 'file'` the page and the raw file would
collide on the same URL.

URL shapes here are worth knowing, since `build.format: 'file'` makes the
listing a *file* (`dist/notebooks.html`) that sits beside a *directory* of
detail pages (`dist/notebooks/<slug>.html`). Verified against the running
nginx: `/notebooks` and `/notebooks/<slug>` resolve through the generic
`try_files`, but `/notebooks/` does not — a bare directory has no
`index.html`. `deploy/nginx.conf` carries an explicit `location = /notebooks/`
so the trailing-slash form works like every other folder URL on the site.

Both `notebooks-export/` and `public/nb/` are gitignored: tracking them would
make every export dirty the tree, which flips `auto-build.sh`'s change
signature and breaks the `git pull` at the top of each build tick. The
signature hashes `notebooks-export/` separately instead.

Force a full re-export with `deploy/export-notebooks.py --force`.

## Layout extras

Every page carries a left sidebar tree of the whole garden (folders
collapsible, current page highlighted; flows after the footer on narrow
screens) and the bandwidth odometer in the footer, fed by
`https://api.c0smere.net/bandwidth/odometer`. The widget animates at the
lifetime average rate from a fetched baseline — it never reflects live
throughput, and hides itself if the API is down.