<i>"Sign up for our newsletter below to get a download link [to our beta]"</i><p>No thanks, but I'd be glad to try it and give constructive feedback if you can provide a link without the e-mail requirement.<p>I like to think of us as a like minded community trying to help each other rather than worrying about harvesting e-mail during a beta cycle. Why not make it optional until you are v1.0?<p>That said, it looks like you've done some nice work.<p>Do you have mobile apps in progress?
I've been wanting to create a file format like this for so long. Good job!<p>The main thing I was thinking of doing differently was zipping the whole thing up, so that it would become a single file that you could pass around, similar in concept to a CBZ.<p>Edit: Haven't really looked too much at the software, just really excited about the notebook format.
How's its image handling? If it's just "write Markdown to display the image", that doesn't work so well for me - can't view offline, lose context if the image disappears from the Web, etc.
Have you considered Zim (<a href="http://zim-wiki.org" rel="nofollow">http://zim-wiki.org</a>)?
It seems to check all of your points.
I'm using it heavily for all kind of notes that exceed two lines. It has some amazing plugins too (e.g. For organizing Todo items across the entire notebook).
I use <a href="http://workflowy.com/" rel="nofollow">http://workflowy.com/</a><p>In short it's a tree with potentially infinite depth, search, tags (#work) and contacts (@mummy), and the ability to change the root of the tree.<p>It's also possible to share nodes in read or read/write with other users.
It's exportable to Markdown and other formats.<p>Sadly Collate notes nor Workflowy are free software (as in libre), and I cannot install them on my server :-(
(Shameless plug)<p>Couple of years ago I made Atea [0], a text-based note taking/TODO/time tracking app for MacOS. Since it stores everything in plain text files, synchronisation can be offloaded to Dropbox etc.<p>There's no sorting, attachments end everything else Collate offers, but I still use if for tracking time and managing projects.<p>[0] <a href="https://github.com/pkamenarsky/atea" rel="nofollow">https://github.com/pkamenarsky/atea</a>
I found "Standard Notes" a few days ago, could be of interest for people who're looking for apps like this: <a href="https://standardnotes.org" rel="nofollow">https://standardnotes.org</a>
For anyone looking, another note-taking app is <a href="http://onemodel.org" rel="nofollow">http://onemodel.org</a>. (I'm the author).<p>It starts from a different conception of the nature of atomic knowledge. Details at the web site. Text-only, no mobile support (yet?), bit of a pain to install, but the most efficient I've ever known of and easy to use (I hope). Uses postgresql as the back end. I'd consider hosting the db for users, with discussion.
How are conflicts handled?<p>Let's say I have two devices; both are offline. Now when I make changes to the same file on both devices, what happens when both devices come online? I guess there will be data loss?
Until there is a web clipper that can do as well as Evernote, it's not an option for me. These days, I clip as much useful content as I write my own notes.
Did you consider emacs with org-mode?<p>It fits all your points but come with agendas, tags, can export into a crazy amount of format and a whole bunch of useful things I use on a daily basis.
It's already cross platform (without relying on electron), lightweight and can even work without any Gui installed