static_embeddings

https://github.com/roman-haidarov/static_embeddings

A small C-extension runtime for Model2Vec-style static embedding models. Models are converted offline into a flat mmap-able .semb file; at runtime the gem tokenizes (BERT WordPiece), looks up rows and mean-pools them. Releases the GVL on large native work, rejects internal thread fan-out, and links nothing but libc.