I have loved all my Sansa MP3 players, but I find my current Sandisk Clip Jam a bit annoying for some things (very long files names; playlisting; working out wh

I have loved all my Sansa MP3 players, but I find my current Sandisk Clip Jam a bit annoying for some things (very long files names; playlisting; working out what fields it sorts on and why). It won't take rockbox. If you want a cheap device to run rockbox... > Either develop a a player from scratch or port a subset of Rockbox (no games, FX, etc.) on a small SBC plus added display, DAC, SD and LiPo circuitry. The SBC could well be the ESP32 which would add wireless functionality; *Pi and other Linux boards would be tremendously overkill for the task. Shouldn't be that hard for skilled developers, and it would surely sell among those of us who don't want to use a cellphone. ...this feels like it's going to end up as being an expensive device. There are a bunch of other MP3 players available from companies like FIIO, Cowon, Shanling or others. Would you be able to build something that competes with these? https://www.advancedmp3players.co.uk/shop/Digital_Audio_Players.463/?sort=4a&am3sid=tc49ts9uj1l74l1mjuo8d25k80#guide_result https://www.advancedmp3players.co.uk/shop/Digital_Audio_Play... EDIT: Thinking about it, if you had braille on the buttons and a clear simple layout you could push it to both markets: people who want a hackable MP3 player, and people who want an accessible mp3 player for things like audio books. (Which is something my Clip Jam is not great for).