chore: replace multiple devcontainers with a single mise-based one

.devcontainer/Dockerfile

@@ -0,0 +1,32 @@
+FROM mcr.microsoft.com/devcontainers/base:bookworm
+
+ARG MISE_VERSION=2026.5.12
+
+# Download mise binary from GitHub release and verify checksum
+RUN set -eux; \
+    case "$(uname -m)" in \
+      x86_64)  FILE="mise-v${MISE_VERSION}-linux-x64";   SHA256="a238972a3162d710b85b28c324372e96ca4e4b486c81fe78695000d9fbc77c48" ;; \
+      aarch64) FILE="mise-v${MISE_VERSION}-linux-arm64";  SHA256="fd2d5227a8ad0b1e359c70527a8345a9ada72077f8dcbb559371653c3d95464f" ;; \
+      *) echo "Unsupported arch: $(uname -m)" && exit 1 ;; \
+    esac; \
+    wget -O /usr/local/bin/mise \
+      "https://github.com/jdx/mise/releases/download/v${MISE_VERSION}/${FILE}"; \
+    echo "${SHA256}  /usr/local/bin/mise" | sha256sum -c; \
+    chmod +x /usr/local/bin/mise
+
+# Store tools in a shared location accessible to all users, and put shims on PATH
+# so installed tools work in non-interactive shells (CI, devcontainer postCreateCommand, etc.)
+ENV MISE_DATA_DIR=/usr/local/share/mise \
+    MISE_TRUSTED_CONFIG_PATHS=/workspaces \
+    PATH=/usr/local/share/mise/shims:$PATH
+
+# Pre-install all runtimes pinned in the lockfile (build context is repo root).
+# The config is installed to /etc/mise/ as a system-wide default so shims work
+# in any shell, even outside the workspace directory.
+COPY mise.toml mise.lock /etc/mise/
+RUN chmod a+r /etc/mise/mise.toml /etc/mise/mise.lock \
+    && mise trust /etc/mise/mise.toml \
+    && cd /etc/mise && mise install
+
+# Activate mise for interactive shells
+RUN echo 'eval "$(mise activate bash)"' >> /home/vscode/.bashrc

.devcontainer/devcontainer.json

@@ -1,34 +1,19 @@
-// For format details, see https://aka.ms/devcontainer.json. For config options, see the
-// README at: https://github.com/devcontainers/templates/tree/main/src/javascript-node
 {
-  "name": "node-24 (recommended)",
-  // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-  "image": "mcr.microsoft.com/devcontainers/javascript-node:24",
-  // Use 'runArgs' to specify additional docker run arguments.
-  "runArgs": ["--name", "arcjet-examples-node-24"],
-
-  // Features to add to the dev container. More info: https://containers.dev/features.
-  "features": {
-    "ghcr.io/trunk-io/devcontainer-feature/trunk:1": {}
+  "build": {
+    "context": "..",
+    "dockerfile": "Dockerfile"
   },
-
-  // Use 'forwardPorts' to make a list of ports inside the container available locally.
-  // "forwardPorts": [],
-
-  // Use 'postCreateCommand' to run commands after the container is created.
-  "postCreateCommand": "bash -i -c 'nvm install 24 --latest-npm'",
-
-  // Configure tool-specific properties.
   "customizations": {
     "vscode": {
       "extensions": [
         "astro-build.astro-vscode",
+        "denoland.vscode-deno",
         "svelte.svelte-vscode",
+        "tamasfe.even-better-toml",
         "Vue.volar"
       ]
     }
-  }
-
-  // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
-  // "remoteUser": "root"
+  },
+  "name": "arcjet-examples",
+  "runArgs": ["--name", "arcjet-examples"]
 }

CONTRIBUTING.md

@@ -54,18 +54,14 @@ When using [OrbStack](https://orbstack.dev/), each example will be reachable at:
 
 ## Static analysis (formatting & linting)
 
-We use [Trunk](https://docs.trunk.io/) to manage formatting and linting.
-
-If you’re **not** using the devcontainer, first [install Trunk locally](https://docs.trunk.io/references/cli/install).
-
-Once installed:
+Run Biome and Prettier directly from the example directory:
 
 ```sh
-# Format all changed files
-trunk fmt
+# Lint (Biome)
+npx biome lint .
 
-# Lint all changed files
-trunk check
+# Format (Prettier)
+npx prettier --write .
 ```
 
 > [!TIP]
@@ -198,7 +194,7 @@ We use [`npm-check-updates`](https://www.npmjs.com/package/npm-check-updates#coo
 
 ### Deno
 
-Deno dependencies are currently managed manually. Open the `deno-2` devcontainer and run:
+Deno dependencies are currently managed manually. Run:
 
 ```sh
 cd examples/deno
@@ -207,9 +203,7 @@ deno update --interactive --latest
 
 ### uv (Python)
 
-Python dependencies are currently managed extra manually. From the `python-3` devcontainer:
-
-
+Python dependencies are currently managed extra manually. Run:
 
 ```sh
 # Run from an example folder, e.g. examples/fastapi
@@ -240,9 +234,3 @@ _Typically if this passes without error, everything is working relatively well._
 ```sh
 docker compose build --no-cache
 ```
-
-VSCode switch devcontainer:
-
-```txt
-[COMMAND]+[P] > Dev Containers: Switch Container
-```