The differential fuzzing approach is clever — way safer than a big-bang rewrite. Running both versions in parallel to catch edge cases before switching over is how you actually ship rewrites without breaking production. The 160k to 90k LOC drop is impressive, but the real engineering win is the validation strategy.
On binary size, static linking with LTO should handle most of the bloat without needing custom stdlib builds.
On binary size, static linking with LTO should handle most of the bloat without needing custom stdlib builds.