_hdl_build

The organ floor: entry points, products, and their gates. Where runtime/ holds importable substrate, _hdl_build/ holds the modules that own a main() — services, tools, games, benchmarks — plus the executable proofs beside them (the *_gate.nx / *_test.nx convention; thousands of gate organs live here). The shared verification substrate is nx_gatelib (the one tree walk, file read, and source-inspection layer — extracted after its author duplicated nine functions building two scanners), with nx_dupfunc hunting duplicated function bodies across the tree and nx_gate_verdict as the canonical PASS/FAIL emitter.

Notable residents: the sovereign browser lane (nishi and its fetch/render organs), the game-interaction substrate (nx_game_actor, nx_game_genetics and siblings), and this wiki's own generator (nx_codewiki_lib + nx_codewiki_gate) — the wiki documents itself under the same rules it applies to everything else.