I am now working on a bunch of ideas that I hope will help some people around here:

1. A Pocket-to-Kindle service that syncs (almost) instantly to your Kindle whatever article you save, formats it like a professionally edited book, cleans up ads and takes advantage of the new typesetting engine inside the new Kindle firmware.

2. A Spotify music discovery website. I'm trying to make a two-click-playlist-generator by using Spotify APIs to look at the top artists/genres of a user and create playlists on the fly with tracks that the user could like.

I use Spotify daily and found myself overwhelmed by how much music there is available. Because of that, I'm mostly listening to my saved songs, Discover Weekly/Release Radar and trying out playlists that usually have the same too popular songs.

3. An adaptive brightness/contrast app for external monitors. Adjusting brightness using the monitor's controls is always annoying to do.

4. A morning alarm that starts playing an algorithmically generated Spotify playlist each time, with fade-up volume, external speaker support, adaptive algorithm based on likes/dislikes and self-updating alarm times based on day moments (twilight, sunrise, golden hour, dusk etc.)

5. A detector for processes that eat up all your CPU and battery. I started writing this in Rust so I can make it cross-platform and learn the language at a lower level.