Could I have the source code so I can plug in the Polish word list? It would make a great training app for Scrabble.

Yeah its just the single index.html file feel free to download it and adapt

You could also probably one-shot your own version of this using any SOTA LLM, it's not terribly complicated (but a nice game idea!).

It's unobfuscated. Right click, view source, there it is.

Just one shot in Claude if you have it or deepseek flash for free.