- **GigaBIT M1 — Reference Frame Stiffness** — Client: StarSpec (Adyn Miles). P04-GigaBIT-M1. Active since 2026-03-04. Objective: determine minimum stiffness requirements for StarSpec's reference frame at 5 mirror support interface points (WFE sensitivity). Hybrid B+D method, SOL 101, ~42 runs. ΔWFE budget ≤1.0 nm RMS. Project folder: `repos/Atomizer/projects/gigabit-m1-frame-stiffness/`. PKM: `obsidian-vault/2-Projects/P04-GigaBIT-M1/`.
- **P-Zernike-Validation** — V&V complete (2026-03-09). Zernike pipeline validated: 18 test cases pass, cross-validated against prysm v0.21.1 to machine precision (<1e-13 nm). Requested by Adyn Miles for risk reduction before M2/M3 ordering. Commits: `f9373be`, `075ad36`.
- **Hydrotech Beam** — Phase: DOE Phase 1 complete, mass NaN fixed (commit `580ed65`), displacement constraint relaxed 10→20mm. **Blocked on Antoine pulling fix on dalidou.** Lower priority — Antoine focused on GigaBIT M1 now.
- **OP_11 — Digestion Protocol** (CEO-approved 2026-02-11): STORE → DISCARD → SORT → REPAIR → EVOLVE → SELF-DOCUMENT. Runs at phase completion, weekly heartbeat, and project close. Antoine's corrections are ground truth.
## Lessons Learned
- Mass confusion (11.33 vs 1133 kg) — contradictions propagate fast when not caught. Digestion protocol's DISCARD + REPAIR phases exist to prevent this.
-`beam_lenght` typo in NX — must use exact spelling. Domain-level knowledge.
- NX integer expressions need `unit=Constant`, not `MilliMeter`
- Always `.resolve()` paths, never `.absolute()` — NX file references break on copy
- Existing `optimization_engine` should be wrapped, not reinvented