Google earth

Another good email client. Many are trying to leave Thunderbird on GNU Linux but there aren't many to choose from.

A self-hosted photo/video viewer which presents itself as an Open Directory that maps closely to the underlying file system and also includes the ability to view images and stream videos. If videos are too large/incompatible with the user’s browser, they should be transcoded on the fly (optionally with the gpu). Genuinely surprised something like this doesn’t exist

Open source language learning only has Anki. Everything else is in an enbryonic stage.

There are so many low hanging fruits. Add-on to look up words in subtitles and add it to Anki. Luo dingo clone that's a bit less tedious (without having to write so much of your native language). Clozemaster clone (unless someone knows how to set up Anki to do this)

Proper 3D CAD software, we have FreeCAD but it isn't very good.

I'd like a local filesharing option. Where a single folder would be synced in my phone from home computer when I'm at home, and from work computer and phone when I'm at work. Without using cloud sync between them only when I'm physically traveling between them, that's good enough for most use cases of cloud sync that I want for work.

A mesh network internet, it's more of a hardware, security, and adoption problem but at this point there's enough wifi overlap in most residential areas that entire towns could have their own local internet without needing the ISP model at all.

Most anything related to healthcare:

• System for medics and nurses to input all the data of a patient, which can be accessed by said patient if need be
• System for keeping track of vaccines applied and pinging people who need to take more shots (second dose, reinforcement dose, etc)
• drivers and programs to interact with medical equipment

A. Phone.

I'm always surprised that, for as widely used as PDFs are, there doesn't seem to be any real alternative to Acrobat for editing existing PDFs.

I would really like to see something like Jellyfin/Komga but for sheet music. There’s a software in early development called Sheetable that stores it in PDF format, but I really want to see something that has MusicXML support so that sheets can be played back.

Tax software. It's the only reason I keep a windows VM.

A manga chapter/volume manager similar to sonarr/radarr/readarr that can download with or similar to fmd2/hdoujin downloader/mihon

for me the most critical ones are replacements for discord and microsoft teams. for discord the critical piece is the login - people don't want to make accounts on each server, so until we have proper federation with a good user experience people won't actually move off it.

for teams i'm sure theres projects in development, i just don't know them or their status - all i know is that i want a project to combine several specialized FOSS services (jitsi is great, and there's lots of other collaboration tools for email/calendar/chat) into one nice unified frontend that is actually reasonably easy to self-host and maintain.

I have no clue yet if an open source solution exists, but I'm just getting started volunteering with a local animal rescue, and they definitely need a better solution for records management.

Idk if there's a os music sheet software somewhere but if someone know one i am interested

At the minute, a true open source and free browser/web engine, though I know this is nigh impossible to maintain without thousands of people. Some part of me is hopeful though given recent events.

A Wayland reimplementation of XMonad.

I would love to see a non-proprietary desktop music player. Just something simple that I can listen to my MP3s with. Audacity is great, but it’s a PITA when it comes to casual listening.

/s. As sbv Said in another comment, I think it’s best to join an existing project. Loops has potential to rival TikTok but it’s still not in a state I would use.

It you're looking for ideas-- Something you're passionate about. Find a problem you're having, fix it, and make it open source. That's the best way to make sure whatever you do doesn't get abandoned. Good luck