Begin Firecracker microVM support

CONTRIBUTING.md

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+# Contributing
+
+## TL;DR
+
+### 1 Install system packages
+
+```bash
+sudo pacman -Syu --needed \
+  base-devel \
+  git \
+  python \
+  uv \
+  sqlite \
+  curl \
+  wget \
+  openssh \
+  squashfs-tools \
+  e2fsprogs \
+  caddy \
+  podman
+```
+
+Notes:
+- `uv` is package/dependency runner used by repo.
+- `squashfs-tools`, `openssh`, and `e2fsprogs` are needed for `get_rootfs.bash` image prep flow.
+
+### 2 Bootstrap project
+
+```bash
+uv sync
+```
+
+### 3 Day-to-day commands
+
+```bash
+uv run python manage.py check
+uv run pytest -n 5 -q
+uv run ruff check . --fix
+uv run ruff format .
+```