Serve the hand-drawn blog art as traced SVG

AGENTS.md

@@ -38,4 +38,5 @@ PRs target `main`. Before starting, `git fetch origin` and set the upstream to t
 `git stash` is one stack shared by every worktree; set work aside with a commit instead.
 Use the Nix dev shell (direnv, or `nix develop --command just ...`) so tooling matches CI.
 Run `just fix` before committing. `just check` alone is not verification: look at the change in the dev server (`just dev`, `just dev-pub`, or `just dev-watch`).
+Hand-drawn art ships as SVG: `just trace` the drawn PNG, compare the two, then commit only the SVG.
 Quests: before starting work, run `quest guide` and follow it. The `quest` binary comes from the kixelated/quest flake input and serves the quest skills; change them upstream and bump the input.

flake.nix

@@ -60,6 +60,11 @@
 
                   # `quest check` and the quest-* skills; see the input.
                   quest-cli
+
+                  # `just trace`, which turns hand-drawn art into SVG.
+                  imagemagick
+                  librsvg
+                  potrace
                 ];
 
                 # `just cards` imports Playwright from here rather than node_modules,

justfile

@@ -40,6 +40,11 @@ cards *args:
 	bun i
 	bun tools/cards/render.ts {{args}}
 
+# Trace hand-drawn PNGs into SVGs beside them (tools/drawn/trace.ts). Then delete
+# each PNG and point its references at the SVG; a cover still gets a PNG og:image.
+trace *args:
+	bun tools/drawn/trace.ts {{args}}
+
 # Upgrade any tooling
 upgrade:
 	# Update the NPM dependencies

package.json

@@ -54,6 +54,7 @@
 		"@types/bun": "^1.4.3",
 		"@types/node": "^26.6.5",
 		"rolldown": "^1.2.14",
+		"sharp": "^0.35.5",
 		"shiki": "^4.5.0",
 		"tailwindcss": "^4.3.3",
 		"typescript": "^7.0.2",