hatch-surf/docs/engineering/onboarding.md
CTO 82ccb1fc1b docs+license: realign engineering foundation to Go stack per ADR-0001/0002
Migration commit for the ELF-15 atomic PR. Realizes the CTO plan in
ELF-13 revision 1 and ADR-0001 (Go + SQLite + stdlib net/http + SSR +
SSE) and the detail choices in ADR-0002 (chi, modernc.org/sqlite, html/
template, stdlib testing, Apache-2.0).

Docs:
- docs/engineering/tech-stack.md rewritten for Go + SQLite + stdlib
  net/http + SSR + SSE. Frontend is server-rendered HTML + a little
  vanilla JS. Packaging is multi-stage golang -> scratch with an
  optional Caddy sidecar. Boring-technology principle kept.
- docs/engineering/first-engineer-role.md rewritten: Go must-have
  (stdlib + HTTP fundamentals + SQL + GitHub), TypeScript/Next.js/
  Prisma/PostgreSQL moved to nice-to-have or deferred. Tailwind and
  monorepo tooling explicitly deferred.
- docs/engineering/onboarding.md: pnpm install / pnpm dev replaced
  with go test ./... and go run ./cmd/hatch. New step: read local-dev
  and hatch-architecture on day 1.
- docs/engineering/local-dev.md (new): day-to-day commands, where
  things live, SQLite tips, troubleshooting. Living doc, engineer owns.
- docs/engineering/hatch-architecture.md (new): component map (http
  ServeMux -> handler layer -> store layer; in-process SSE hub),
  request lifecycle (Capture / Inspect / Mock / Live update), data
  model (endpoints, requests), performance budget, future seams.
- docs/adrs/0002-hatch-detail-stack.md (new): CTO-authored ADR
  closing the open choices in ADR-0001 with concrete picks, named
  alternatives, and a per-choice rollback path. Router: go-chi/chi.
  SQLite driver: modernc.org/sqlite (pure Go, no CGO). Templates:
  stdlib html/template + //go:embed. Tests: stdlib testing + httptest.
  License: Apache-2.0.

Housekeeping:
- README.md: drop the apps/ and packages/ layout lines (no
  monorepo), add local-dev and hatch-architecture pointers, fix
  Hatch demo to point at /healthz, switch license line from
  'Proprietary' to Apache-2.0 with a LICENSE file pointer.
- CONTRIBUTING.md: code-style section rewritten for Go (gofmt,
  go vet, internal/ for pure logic, server-rendered by default);
  branch example uses engineer/hatch-* matching the actual workflow.
- LICENSE: full Apache-2.0 text, copyright El Foundation 2026.
  Per ADR-0002.
- .gitignore: ignore the pre-built 'hatch' binary, bin/ (per ADR
  0002 binary convention), and SQLite files (*.db, *.db-journal,
  *.db-wal, *.db-shm).

Out of scope (handled by ELF-17 onwards, not this PR):
- Storage layer implementation (Task B, ELF-17)
- Capture, Inspect, Mock (Tasks 3-6)
- E2E smoke test (Task 8)

Foundation + this commit are the atomic PR. CI is green (go vet,
go test ./... -race, docker build all pass locally; same gates the
GitHub Actions workflow enforces).

Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-06-22 15:12:04 +02:00

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Engineer Onboarding

Before Day 1

  • Access to GitHub org granted
  • Access to Paperclip workspace granted
  • Added to project channels / async standup

Day 1: Context

Day 23: Environment

  • Install Go 1.25 (or newer) — see the Go install instructions if you do not have it
  • Verify go version reports 1.25 or newer
  • Clone the repo
  • Run go mod download to fetch dependencies
  • Run go test ./... — should pass on a fresh clone
  • Run go run ./cmd/hatch and curl http://localhost:8080/healthz — should return ok
  • Run docker compose up --build and visit http://localhost:8080/healthz — should return ok
  • Open your first PR (a README typo fix or doc improvement counts)

Week 1: First Task

  • Pick up a good first issue or grab a task from the backlog with CTO approval
  • Follow the full task lifecycle: branch → PR → review → merge
  • Shadow one code review as a reviewer (even if just observing)

First 30 Days

  • Ship at least one meaningful change to production (or equivalent if pre-launch)
  • Write or update one piece of documentation
  • Attend (async) one decision review or ADR discussion
  • Provide feedback on the onboarding process itself

Questions?

Ask the CTO or post in the project channel. Async-first: write it down.