I have RM3 models and I use homebridge. The broadlink plugin works as you’d expect. Using the learn command, you then point the remote at the broadlink device and press the button you want to learn. The IR code (a long string) appears in the server log. Then you can copy and paste it to save it wherever you want. So in theory your idea is sound. But the official broadlink app won’t support revealing the codes.
Back in the day I used nsanedown.com. Seems to be around still.
That’s smart! Just realise that you don’t actually own anything though, just license it. Which for the most part is the same. However, sometimes things like background music get changed due to licensing fees. So, for example , Scrubs (tv show) dvd is far superior to what you can purchase for streaming.
That’s all very well, but in some regions like Australia, Disney has or has announced the end of DVD and Blu-ray sales, which sucks.
Thanks for pointing that out. I just blocked them too. Phew!