The gitea-runner is a systemd DynamicUser whose passwd home is /, so ssh
expands ~ to /.ssh/... (not $HOME). deploy-rs passes ssh opts to ssh with
no shell, so a tilde in deploy.nix sshOpts resolved to a missing key and
nix copy failed with 'failed to start SSH connection'.
Keep deploy.nix sshOpts path-free; build absolute -i/known_hosts paths in
deploy.yml from $HOME (bash-expanded) and append them via --ssh-opts, which
deploy-rs merges into NIX_SSHOPTS for the copy and the activation ssh.
Also removes the temporary SSH debug step.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Lays out the agreed shape from the design discussion: one flake at the
root with three nixosConfigurations (mqtt-ingest, db-host, app-host),
vendored Supabase docker-compose pointed at the external db-host,
Caddy → Kong → PostgREST/GoTrue, a Go MQTT→Postgres ingester stub,
deploy-rs node map, and a Gitea Actions workflow that deploys in
db → app → ingest order on push to main.
No real implementation yet — every host module has TODOs marking the
gaps (real hardware config, actual hostnames, HiveMQ packaging,
vendor the full upstream Supabase compose, etc.).
Lars Nolden