Fairmark

I built Fairmark as an alternative to Obsidian and Notion. It includes an easy to use categorization system: by giving every note a unique name, an emoji, and descriptive tags (which have colors, emojis and names) filtering notes out is really easy!  I even personally found it really useful for categorizing my ideas and school notes, since the tag colors are displayed as subtle gradients in the note selector. It really feel great to build something I use myself.