>>16702534 (OP)I very much enjoy using Trilium Next Notes, although I haven't used it for much math stuff. It does have LaTeX support.
I used to use Obsidian across 3+ devices (main pc at home, laptop, phone) and sync them for free using OneDrive.
Now Im running multiple server instances of triliumnext/notes on a raspberrypi -- only accessible from home but I could make it accessible outside with some sort of VPS or program like Tailscale or registering for a free TLS cert and allowing https access only
I'm rambling.
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you can download it at the bottom of this page, in the "Assets" section:
https://github.com/TriliumNext/Notes/releases/tag/v0.95.0
TriliumNextNotes-v0.95.0-windows-x64.exe
https://github.com/TriliumNext/Notes/releases/download/v0.95.0/TriliumNextNotes-v0.95.0-windows-x64.exe
TriliumNextNotes-v0.95.0-macos-arm64.dmg
https://github.com/TriliumNext/Notes/releases/download/v0.95.0/TriliumNextNotes-v0.95.0-macos-arm64.dmg
TriliumNextNotes-v0.95.0-macos-x64.dmg (worked with my x64 bit Intel macbook)
https://github.com/TriliumNext/Notes/releases/download/v0.95.0/TriliumNextNotes-v0.95.0-macos-x64.dmg
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Documentation is here:
https://triliumnext.github.io/Docs/
Also it's a bit of a naming clusterfuck right now. It used to be called Trilium Notes, then Trilium Next Notes. Now they are in the middle of migrating back to Trilum Notes but it seems the current owner is still undecided as to how to finalize that naming decision.
see:
https://github.com/orgs/TriliumNext/discussions/2190
if you need help installing it or setting up a server just reach out in this thread, this board moves slow.
whatever works for you is best, just wanted to share this with people in case they hadn't heard of it