A basic, local text-to-speech app using home assistant's piper would be great. Feed it a document and have it read the document to you, highlighting along the way.

A graphical SSH client similar to Termius

A gui for a tunneling solution such as rathole or FRP.

screen2gif. Peek is really good on the capturing side but it lacks all the editing tools like resizing, changing speed of each frame, removing specific or ranges of frames, inserting frames, drawing on frames, and of course exporting in different formats with very good compression options. I really miss being able to fine tune my gifs without having to open multiple tools or scripts.

A speech-to-text / dictation system geared towards writing documentation.

An open-source Resilio Sync alternative (not syncthing) that centers around the folder represented by unique hash, without any device management

I wrote a version of this in Python a few years ago, but it depended on external tools like ffmpeg to work, limiting its portability. The Python requirement was also a major factor for adoption.

If it were ported to Rust, doing the (de)serialisation internally, I believe that it could have far-reaching implications on how we share and consume news:

https://danielquinn.github.io/aletheia/

If you're interested, I presented the Python version at PyCon UK a while back.

Sticky notes, but they accept markdown and mermaid syntax

Option 2: a Windows XP Paint clone. Seriously, all the paint clones you can get on Linux, like gnome paint, just don't work properly

Would it be possible to clone the snipping tool from windows?

There is an app called Rethink DNS for android. It is a DNS filter by Mozilla guys. It can also show the DNS queries generated through the system. One can block certain apps, exclude certain app from DNS filtering. It has wireguard support, that means can route certain apps through proxy. It has to be the bast app I ever downloaded. Please can you make something like this for Linux.

If anyone knows an existing alternative please comment. (On arch based distro.)

Something that gives you a reminder after a certain time of using a specific program (a game for example). I wanted to make it on my own but my coding skills are absolute garbage so it probably wouldn't work very well.

A wayland screen recorder. Not everyone needs a complex app like obs. Also, a jellyfin/emby front end maybe?

An actually good alternative to Notion for Linux.

lemmy client? it would be amazing just to have a tui.

Maybe a Linux-native Lemmy app? Or a client for Mastodon? Pixelfed, PeerTube?

Or a GUI for the Rust-based rescrobbled project?

1 Custom GLIBC locale configurator

Pick date format, time format, currency I'm currently using a weird combination of English, German, and Danish and it still doesn't fully do what I want (time is separated with a dot)

2 System hosts manager

Search, detect conflicts or other issues and add new items.

3 XCompose manager

I made something like this myself some time ago but it uses the outdated GTKSharp library and misses several features such as conflict detection. https://github.com/QazCetelic/Composition

4 Package manager

This might be a bit complicated, but it would be really neat to have an app to manage packages that doesn't freeze, crash or fail.

5 Port your app to tauri

I saw you're using Electron, you could port it to Tauri https://tauri.app/

A text web browser that actually lets you log in to websites.

Frontend for AOL that looks like regular desktop AOL but without all the ads and popups. If only because it's something I doubt anyone would make before the EOL of Windows 10.