Open source version.  It stands for logical sequence.  It's way better if you know how to use it.  I integrated both nostr and solid years ago, for personal use, and it's ace.

https://logseq.com/



https://image.nostr.build/75cb1fa984e513f1402afd4ce93c2a66b23a9b7c199c4e03f5b4edd1e48224d8.jpg