### The developer's path: `wai hello`, `create`, `dev` and `verify`; the floor with no system library; the examples

- **`floor`** (wai-rs feature): the mandatory floor of SPEC §5 (PNG, FLAC, zstd) decoded with no
  system codec library; `wai encode` writes PNG and zstd, and a codec outside the floor is
  refused naming the build that has it. **`quickstart`**: the floor, and the receipt checks
  `hello` and `verify` run; the prebuilt `wai` is built with it.
- **`wai hello`** names, dispatches, rebuilds and receipts a picture made in place, the receipt
  laid out as http-delivery §8 lays receipts beside an object; **`wai verify <dir>`** checks
  every receipt index under a directory offline; **`wai create <dir> --template <name>`** writes
  a project from one of the examples, whose files the binary holds; **`wai dev`** runs the relay,
  the room service and the room page on one loopback origin, and `--check` checks each piece
  through it. The project file a template writes is `wai.json`.
- **`examples/`**: video-room, watch-together, messaging, encoder-ingest, package-and-deliver,
  verify-receipts, apple-app, android-app and remote-desktop, each with a test that runs it
  through `wai create` and `wai dev` (`.github/workflows/wai-examples.yml`).
- **`quickstart/`**: the archive of the command line and what `wai dev` runs, its build, its
  release workflow (`.github/workflows/wai-release.yml`, on a tag `wai-v<version>`) and its
  installer.

