I ended up with a similar method. Images are the next step for me. I already tried them with Japan's prefectures, and I think it really helped what's kind of a tough slog.
A couple notes on his process:
You don't have to pay the premium for an Anki TTS addon. It's easy to set up an account with Azure's API and they have a free tier that is more than enough for this purpose. Requires a credit card on file, but it can always be locked with your bank (or a service like privacy.com).
AI phrase/sentence generation is an alternative to a Google Translate hook. I've got a running AI thread that knows my language level and knows I want silly/goofy/interesting sentences to make them memorable. And if you're doing i+1 learning, you don't have to worry about AI hallucination. You can verify the output since the generation is at a comprehensible level for you. I then have it convert it all into a CSV format right there in-thread for the Anki import.
If an Internet infrastructure giant can't make MMOs work, I don't see how these smaller MMO projects that keep popping up are going to, either. Greg Street also recently just talked about how his isn't getting funding.
It's too bad, I think SpaceCraft looks interesting but I don't know if it's going to make to 1.0, much less stick around.