# inter-hub-haskell (retired)

**Status:** renamed and retired 2026-07-08 (`CORE-WP-0007`). Forgejo repo:
`coulomb/inter-hub-haskell`. Production ingress at `hub.coulomb.social` serves
[Core Hub](https://gitea.coulomb.social/coulomb/core-hub) since 2026-07-03.

Historical specification and reference implementation of the **Interaction Hub
Framework (IHF)** — the second-generation Haskell/IHP interaction substrate
superseded by Core Hub.

## Preserved knowledge

Read these before touching any remaining Haskell/IHP build path:

- `specs/InteractionHubFrameworkSpecification_v0.2.md` — full IHF contract
- `ARCHITECTURE-LAYERS.md`, `specs/OperationalArchitecture_v0.1.md`
- `SCOPE.md` — phase breakdown and boundaries
- `deploy/railiance/RUNBOOK.md` — last production deployment notes

## Replacement

- **Production API:** [Core Hub](https://gitea.coulomb.social/coulomb/core-hub)
- **Ops extension pattern:** `ops-hub` (evidence now posts to Core Hub)
- **Migration bundle source name:** `inter-hub-haskell` in Core Hub fixtures

Rollback k8s deployments are scaled to `0` on CoulombCore and railiance01.
CI workflows are `workflow_dispatch` only; do not schedule new haskelseed builds.

## Stack (historical)

Built on IHP v1.5 + PostgreSQL + Nix/devenv. Local dev (if ever needed):

```bash
devenv up
```