tcc:
tcc needs heavy modifications for web, needs modifications to sandbox file io, ABI issues.

picoc:
picoc do not supports floats (only doubles), function pointers, slow.

Possible alternatives:

• https://github.com/kungfooman/EiC-C-Interpreter
• https://github.com/EarlGray/c4
• https://github.com/jnz/q3vm

Ideally we need script->bytecode translator (reuse AVM1?), so player needs support only bytecode, easy sandbox, normal speed, compiler fixes do not affects already installed players.

Useful links:
https://github.com/r-lyeh-archived/scriptorium
https://github.com/dbohdan/embedded-scripting-languages