The pin script discovered the catalog with the checkout's version, which on
main is the last release, so pi.dev answered with the catalog for released
clients after MINIMUM_PI_VERSION was raised. It now pins the newest
published catalog and treats the pin as stale when its provider/type/API
model groups differ. The release script pins the newest catalog and runs
the Nix build steps before tagging.
closes#10985
Add a Nix flake that builds Pi from the checkout on aarch64/x86_64 Linux
and macOS. The build is offline: provider model data is hydrated from a
pi.dev model catalog revision pinned in nix/model-catalog.json, and the
runtime dependency tree comes from packages/coding-agent/install-lock with
internal packages built from source.
The Nix workflow keeps the catalog pin current on main, builds release
tags on all systems, and fast-forwards the stable branch to each release
that builds. The release script refreshes the pin before tagging.
npm installs no longer pin transitive dependencies. Pinned installs come
from the pi.dev installer lockfile. pi update on global npm installs now
recommends migrating with the installer.
closes#5653
