Very timely. I literally ran a Claude prompt "compare and contrast Notion vs Obsidian" and flipped over to HN while it was thinking, and this comes up. Thanks HN!
For a personal knowledge base? I would stay far away from anything proprietary for personal notes. I love logseq though I'm increasingly worried it's abandonware
You could try https://hyperclast.com/ (my project). Here's the comparison vs Notion, Obsidian etc https://hyperclast.com/vs/
I self host https://www.getoutline.com/ instead, they might not have the latest AI features but it has everything I could ask for from a Notion alternative.
I switched from Obsidian to Joplin years ago. Its completely FOSS and can sync with your private Nextcloud instance.
Consider Trilium if the collaboration stuff people use Notion for isn't important. It's open source, uses SQLite, and does automatic daily and weekly backups.
Thanks for the pointers everyone, there were quite a few that weren't on my radar. My use-case isn't a "personal knowledge graph", I'm building an ADU and so I'm looking for a lot of components: todo lists, inspiration boards, costing/spreadsheets, ordering lists, documents.
Notion looks to be pretty capable in that regard, so the knowledge graph options really fell short (Logseq, Obsidian, Joplin, Trilium, Craft). They are likely good if your use case is in their lane.
Anynote looks like a good option, except it doesn't have a web client, just the Android/iOS (and MacOS I guess?).
Milanote sounds like a possible option if my use were more inspiration-board heavy.
I'll probably give Anynote a try, but Notion really does seem to be a compelling product if it weren't for the jackassery that lead to this thread to begin with.