I spent several years looking for the perfect selfhosted solution to this, but ultimately I realized an offline solution was just going to be better. So I started using Obsidian which is as simple or complex as you want with no paywall.

Some of the self hosted solutions I’ve tried were:

• Memos
• Blinko

You might want to list the platform you want to use it on. I’m assuming that you’re wanting to access this on a smartphone of some sort?

Anytype is awesome!

Hi quaff!

The app I use for this purpose is called Notally, on android. It supports reordering the checkboxes, but it doesn’t do find in page or sync to web (although it can do backup /restore – I sync the folder with nextcloud and I can access the text files)

That said if you try it, you might love how simple it is and use it for something!

https://f-droid.org/packages/com.omgodse.notally

Not for everyone, but I use a self-hosted single user email server for this. All the formatting your client permits, clients for every platform, attachments, organization into folders, synced automatically everywhere, etc. No spam filtering, MARC, DKIM, and the like because you only ever email yourself and you don’t permit external senders. I love it.

I use Tasks.org with caldav (Radicale) on android and thunderbird on pc, would that work?

https://play.google.com/store/apps/details?id=org.tasks

I see tasks.org supports etesync, which encrypts data. I have never used it though

How about AnyType? It matches your requirements.

Others have mentioned Syncthing as a sync solution. I’d like to add a couple points:

Syncthing can work fine even for solutions that are intended to use their own sync, provided it’s a single-user setup. You’re not likely to make simultaneous changes on 2 devices, so collisions are unlikely.

Also for using Syncthing, I recommend Syncthing-Fork for Android - it moves sync conditions into the folder/job rather than global. Very useful when you have jobs you want always syncing, and jobs you want to only sync on wifi and power.

If using iOS there’s an ST client called Möbius Sync ($5), developed by a company the financially supports Syncthing.

For Windows, get SyncTrayzor - it makes running and managing ST easier.

I use notesnook but I don’t self host, just the app locally. It has an option to insert a task list into the note, and that has drag and drop reordering. It also encrypts at rest, and has text search. Hope that helps your decision.

code editors might have the features you want, and its easy to repurpose a code editor into a notes app.

sync a folder between your devices (syncthing is great for this) and put markdown text files in it. I like to call this folder “Memo” since its like writing letters to myself.

edit the markdown using VS Code (desktop) or Carbon (android). I haven’t tested whether Carbon can do this, but I know in VS Code, you can reorder a list with keyboard shortcuts.

click anywhere on a line of text, then hold Alt and press Up arrow, and the text will swap places with the line above it.

edit: Syncthing and Carbon are open source. VS Code has some proprietary code added by Microsoft, but none of it is relevant to your use case, so you may prefer the fork called Codium.

I use Logseq with ToDoList plugin to handle task list. Logseq is similar to obsidian but open-source. And to syncronize notes among devices, I use syncthing. No need to selfhost.

Not sure of your specific needs, but I feel that self hosting (i.e. setting up a proper server) is unnecessary. Just pick a local first program and use it with syncthing.

The usual trio (which may be overkill) are Obsidian (admittedly not open source), Trillium, and logseq.

I use Workflowy. Partner and I replaced G Keep with it. It can do A and maybe C.

Have you considered Kanban apps? All of them should support A+C. I’ve used Wekan and Kanboard. Hope this helps your searching!

You can do all this with Obsidian and plugins. I just saw a nice keep like interface one. You’ll have to play around a bit but it’s definitely doable.