CM 2026

.devcontainer/devcontainer-lock.json

@@ -0,0 +1,19 @@
+{
+  "features": {
+    "ghcr.io/khannurien/devcontainer-features/claude-code:1": {
+      "version": "1.2.0",
+      "resolved": "ghcr.io/khannurien/devcontainer-features/claude-code@sha256:17eb69bfd15ff5206c0bff2945935a4349f7423cabee461a0ba2681d52205db9",
+      "integrity": "sha256:17eb69bfd15ff5206c0bff2945935a4349f7423cabee461a0ba2681d52205db9"
+    },
+    "ghcr.io/khannurien/devcontainer-features/opencode:1": {
+      "version": "1.1.0",
+      "resolved": "ghcr.io/khannurien/devcontainer-features/opencode@sha256:8df3f8c98a104ce7e089ba3e8df39e0d3890753c8dc92e03deb54527d30d3574",
+      "integrity": "sha256:8df3f8c98a104ce7e089ba3e8df39e0d3890753c8dc92e03deb54527d30d3574"
+    },
+    "ghcr.io/khannurien/devcontainer-features/rtk:1": {
+      "version": "1.1.0",
+      "resolved": "ghcr.io/khannurien/devcontainer-features/rtk@sha256:4a60b3a1d1b64904de3d856c61cdf7e5943e3c74d114609787dc88d9db7c788f",
+      "integrity": "sha256:4a60b3a1d1b64904de3d856c61cdf7e5943e3c74d114609787dc88d9db7c788f"
+    }
+  }
+}

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/markdown
+{
+	"name": "Markdown Editing",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/base:bookworm",
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// typst is installed by .devcontainer/setup.sh, not by the devcontainers-extra
+	// feature: 1.0.6 resolves "latest" to the legacy v23-03-28 tag.
+	"features": {},
+
+	// Configure tool-specific properties.
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {			
+			// Add the IDs of extensions you want installed when the container is created.
+			"extensions": [
+				"yzhang.markdown-all-in-one",
+				"streetsidesoftware.code-spell-checker",
+				"streetsidesoftware.code-spell-checker-cspell-bundled-dictionaries",
+				"DavidAnson.vscode-markdownlint",
+				"shd101wyy.markdown-preview-enhanced",
+				"bierner.github-markdown-preview",
+				"myriad-dreamin.tinymist"
+			]
+		}
+	},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Installs the colour emoji font typst needs: see .devcontainer/setup.sh.
+	"postCreateCommand": "bash .devcontainer/setup.sh"
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.devcontainer/setup.sh

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+#!/usr/bin/env bash
+# noto color emoji, colrv1 flavour.
+#
+# typst >= 0.14 exports colr colour glyphs to pdf, but it does not load the cbdt
+# bitmap font that debian's fonts-noto-color-emoji package installs (`typst fonts`
+# does not even list it), so emoji used in source.md silently disappear from the
+# pdf. the colrv1 build is picked up by font fallback, no markup needed.
+
+set -euo pipefail
+
+# noto-emoji only tags releases sporadically, so pin the font by commit
+EMOJI_FONT_COMMIT=f3ae03f5e9b3b8516fa151f7168159ca1a3e7515
+
+tmp="$(mktemp -d)"
+trap 'rm -rf "$tmp"' EXIT
+
+# typst, static musl build: x86_64 releases no longer ship a gnu build
+TYPST_VERSION=0.15.1
+case "$(uname -m)" in
+  x86_64 | amd64) typst_arch=x86_64 ;;
+  aarch64 | arm64) typst_arch=aarch64 ;;
+  *) echo "unsupported architecture: $(uname -m)" >&2; exit 1 ;;
+esac
+curl -fsSL "https://github.com/typst/typst/releases/download/v${TYPST_VERSION}/typst-${typst_arch}-unknown-linux-musl.tar.xz" \
+  | tar -xJ -C "$tmp"
+sudo install -m 755 "$tmp/typst-${typst_arch}-unknown-linux-musl/typst" /usr/local/bin/typst
+
+curl -fsSL -o "$tmp/Noto-COLRv1.ttf" \
+  "https://raw.githubusercontent.com/googlefonts/noto-emoji/${EMOJI_FONT_COMMIT}/fonts/Noto-COLRv1.ttf"
+sudo install -D -m 644 "$tmp/Noto-COLRv1.ttf" /usr/local/share/fonts/Noto-COLRv1.ttf
+command -v fc-cache > /dev/null && fc-cache -f > /dev/null
+
+typst fonts | grep -i emoji