Cx Dev Log — 2026-03-28

Seven commits of real work landed, capped by the long-anticipated submain merge into the main branch. The backend transitioned from handling only scalar layouts to supporting full data type coverage and initiated the production of loop IR. This marked the single most substantial day of backend progress to date. The submain merge PR #27 finally merged after two days of anticipation. This brought together the accumulated submain work for main: the multi-file import pipeline, Phase 8 Round 1 scalar layout, five vital fixes from the recent audit, dead code elimination, output verification in the matrix runner, and 6 new matrix tests. The test matrix on main now stands robust at 78 tests. Why does this matter? Apart from having hard blockers for our 0.1 milestone cleared up, these new integrations bridge significant gaps, particularly around multi-file imports that had been stuck in the branch limbo. Locking compound type layouts Three pivotal Phase 8 commits saw to it that the remaining da