Everything search app is easily my most used on my Windows PC. Instant, as-you-type file search by name with detail sorting and wildcard support. I set a keyboard shortcut as well. It puts Explorer search to shame. As good as Spotlight, which I was missing from when I had a Mac in 2008.
LaunchyQT - modern fork of Launchy that actually gets development. App launcher, dead simple.
FanControl - Fan curve software with all the features I want including hybrid temp sources, sensible automatic settings, visual graphs with an intuitive interface.
AutoHotKey - Hotkey scripting language that I can use even as someone who barely codes.
Transcribe! - Not open-source but it’s a reasonably priced audio and video slow down app for transcribing.
Cycling kickstarters have an awful track record. Make sure it’s make by an actual cycling company and even then it’s better to do a late pledge after some fulfillment and reviews.