I think I can help.

I put together something that uses OpenCL on GPU, instead of CPU. I used it to find my npub. Much faster, in my case.

It's rough and probably has a bunch of bugs, but it seems to work. I call it noclvag, Nostr OpenCL Vanity Address Generator. It's based on vanitygen-plusplus.

It's AGPL3+ licensed. I didn't upload it anywhere else. Feel free to upload it somewhere easy to access. The link below should last for 90 days. I would have uploaded it myself, but I'm not aware of git forges that work over Tor and without email, etc.

The source code is here: https://oshi.at/BrkV/noclvag-v0.1.tar.gz

SHA256SUM: 989a0ca86297b4137a95c28a40fdabc2d736d8e91ffc26f27cf6c12039407f32  noclvag-v0.1.tar.gz