- Generalized from new_overlay.sh: ALIAS + PAYLOAD + VRAM + optional TEXT_LO (file offset of code).
Class registry chosen by alias prefix (ov_* -> overlays.mk, md_* -> modules.mk; modules.mk
created with its contract header on first use). Fixes the two places new_overlay.sh re-hardcoded
the slot literal instead of $VRAM (:39 TEXTHI, :44 CODEEND).
- TEXT_LO wires the §154 module-id law end-to-end: sig bootstrap gets --text-lo (else 0 functions
on 75/78 payloads), and the splat yaml gets [0x0, rodata, hdr] + shifted code start (the
resident's leading-word trick — ONE shared template, no second file, R33). _TEXT_LO lands in the
mk block as a VRAM for make sig-modules.
- The sentinel-anchored 3-dict registrar + check.sha/symbols/extract/build steps reused verbatim.
- new_overlay.sh is now a 30-line WRAPPER (same CLI, docs preserved, H5); exec's new_binary.sh with
the overlay defaults.
Drew T