nukeykt's Nuked-SC55 commit:205ff94 (20240918) builds (https://github.com/nukeykt/Nuked-SC55)

Builds (target arch):
- i686 (32 bit)
- x86-64 (64 bit)
  + znver1 executable (for AMD Ryzen Series 1000+)

Compiled using -O3 optimization level + additional optimization flags using MSYS2 (Windows 7 compatible)
Used -fno-tree-ter flag to fix compilation bug of often occuring sustained notes (that -O1's optimization breaks this software)

The 64 bit build should run at down to ~80% CPU usage of official build's (ex.: 4% instead of 5%).
The 32 bit build should run at down to ~90% CPU usage of official build's (ex.: 4.5% instead of 5%).
Tested side-by-side with official build, no noticeable issues were found.

Additional corrections:
- fixed signed/unsigned warning in midi port check (use unsigned as rtmidi's openport uses unsigned int)
- fixed signed/unsigned warning in LCD (LCD dimensions type change to size_t to match loop enumerator's type)
- fixed WinMain error under MSYS2
- [compilation time] added missing optimization level under MSYS2 (it requires at least -O1 to stay responsive)
- [compilation time] added missing rtmidi API definition inside flags.make in RtMidi.dir under MSYS2
- [compilation time] added missing -lshlwapi -lwinmm in link.txt under MSYS2
- [compilation time] added missing -static -static-libgcc in link.txt for static building under MSYS2

Known issues:
- official build has a very rare note sustain issue. It's unclear what causes it and whether these builds have it fixed or not.

For sourcecode and licence please visit the official Github page.

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Mr_KrzYch00