This is probably the last year that this is novel and requires any noteworthy level of effort or dedication

One particular stagnant scene is the Visual Novel (VN) space, never taking the risk to compile for MacOS based on old assumptions about market size

Have been thinking of shaking that up with agentic coding tools

It's already here.

RetroGameTalk is posting 1-2 pages of new translations per day.

Unfortunately many of them are still LLM slop. If you're passionate about a series and know things about the canon then these are not good.

I spose you could always just point your own LLM at the ROMs and make your own corrections, or even develop a toolset which stores the text externally and compiles a working ROM, put it on GitHub for others to contribute to the translation.