Phase Status 0: Project Setup ✅ Done 1: Baseline Build ✅ 103,496 bytes 2: SD Driver Migration ✅ Built + committed 3: XBYTE-REPL Integration Next 4: External Test Framework Planned 5: Core Language Features Planned 6: Memory & Recursion Planned Phase 3 (XBYTE-REPL Integration) is the big one — wiring the lisp2_compiler.spin2 and xbyte_engine.spin2 into the REPL's eval path so Lisp expressions compile to bytecodes and execute on the XBYTE engine. This is a deeper architectural change.

Want to continue to Phase 3 now, or is this a good stopping point? It's 5:34 AM — if you'd like to pick up fresh, everything is committed and the reference docs have the full context for the next session. Leaf check-in: bfe7211094 user: refaqtor tags: trunk