I finished with 15 hints used! This was a brilliant little experience to look forward to when I have some time to myself to mull over.
Most of the puzzles were pretty satisfying to solve, the only exception being WLAVRG (spoiler hidden), which felt like it was essentially brute force. Some were real headscratchers!
Overall, this was a wonderful game and I feel bad for having enjoyed it for free. I'll donate some when I get my next paycheck!
🔑SOLVED