this post was submitted on 02 Aug 2026
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I need to quench my thirst for knowledge and learn something new just for the sake of it.

I've already learned:

  • Equations and pivot tables in Excel

  • Vector graphics in Inkscape

  • Music mixing in rekordbox

  • Personal VPN on a raspberry pi 4 with OpenVPN

  • LAMP stack web hosting

  • Streaming & video capture with OBS

  • Manual & automatic backups with FreeFileSync

Things I'm open to:

  • FOSS (even beta) or free-as-in-beer software

  • A high or low learning curve

  • Tools for niche fields that I'd otherwise have no reason to learn

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KiCad takes around 5 minutes to learn and is some of the best software for designing schematics and PCBs.

Falstad is great for when you need simulations of schematics and don't want the headache of trying to use KiCad's built in simulation tools.

Both are FOSS.

[–] myrmidex@belgae.social 7 points 1 month ago

wow rekordbox looks nice! I've used Mixxx up til now.

One killer feature might make me switch: I see rekordbox allows mixing of spotify or apple music songs: do they also support navidrome? That would blow me away!

about the topic: what about home assistant? That should prove an adequate rabbit hole for you :)

[–] hildegarde@lemmy.blahaj.zone 6 points 1 month ago

Lilypond. Its music software. Learning it will keep you occupied for at least a week.

[–] SoulKaribou@lemmy.ml 6 points 1 month ago

One week of keybr.com to improve touch typing skills, which should serve you across all your IT endeavours... Unless you choose to learn gimp and drawing stuff :P

[–] Axolotl_cpp@feddit.it 6 points 1 month ago* (last edited 1 month ago) (1 children)

Slackware- Wait you said fun, nvm

Aseprite (you gotta compile it yourself if you wanna it free tho)

[–] cerement@slrpnk.net 6 points 1 month ago* (last edited 1 month ago) (1 children)
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[–] SnotFlickerman@lemmy.blahaj.zone 6 points 1 month ago* (last edited 1 month ago)

I learned a decent bit about how biometric authentication works (or at least this specific implementation) by installing, setting up, and tweaking settings for Biopass. I also learned about how when you do first login using this method, it can fail to unlock keyrings because the password authentication has been bypassed so no password has been provided to unlock the keyring. It includes anti-spoofing local AI models, and the dev plans to have the option for the user to download and use any model for anti-spoofing/recognition. Interesting stuff.

https://github.com/TickLabVN/biopass

[–] ace_garp@lemmy.world 6 points 1 month ago

CRRCSim (RC plane simulator)

Learn how to slope-soar a glider.

Best with the photo mountain scenery added in.

In many distro repositories too.

https://github.com/gcmcnutt/CRRCsim

[–] DickFiasco@sh.itjust.works 5 points 1 month ago

I recommend learning dc if you don't already know it, and either Octave or Python.

https://en.wikipedia.org/wiki/Dc_%28computer_program%29

[–] banause@feddit.org 5 points 1 month ago (1 children)
[–] Fmstrat@lemmy.world 5 points 1 month ago (4 children)
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[–] AnarchistArtificer@lemmy.world 4 points 1 month ago

I don't have any suggestions, I just want you to know that you're delightful

[–] LandBasedDaveyJones@lemmy.today 4 points 1 month ago

Mmkay thank you, this is such a great thing to ask.

[–] No1@aussie.zone 4 points 1 month ago
[–] hades@feddit.uk 4 points 1 month ago (1 children)

Install one of the distributions where you have to do most of the installation steps manually, such as Gentoo or Slackware or Arch. Or Linux from Scratch of you want hardcore mode.

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[–] DecentM@lemmy.blahaj.zone 3 points 1 month ago

Stage lighting controls are extremely fun to learn. DMX, ArtNet, etc. QLC+ is free and open source, there are TON of other ones as well (like controlling big stage lights with a Wii controller so they move like you).

There are simulators, but the prettiest I've seen so far is https://github.com/AcChosen/VR-Stage-Lighting. Despite its name, you don't need vr for it but if you do, you can watch your lightshow as if it was real!

[–] vogi@piefed.social 3 points 1 month ago* (last edited 1 month ago)

Make sick beats with milkytracker.

I honestly have that still on my to-learn list myself. But it does seem to be a solid choice for FOSS trackers.

[–] Kissaki@feddit.org 3 points 1 month ago

Nushell

Blender

Godot

[–] AceFuzzLord@lemmy.zip 3 points 1 month ago* (last edited 1 month ago)

There's always software reverse engineering. As bad as it may sound to some people, the US NSA has a github repositroy for a tool known as Ghidra, under Apache 2.0 license, so you can look at the source code and determine whether or not it's spyware. If it's actually NSA quality, you know it should be good enough for reverse engineering old software that won't land you in trouble if found out by the original devs. Last update was 2 months ago.

I tried a little bit but have yet to go very far at all with it since I am an idiot who thinks he's smarter than he really is.

Though, taking a page from your book, I am interested in looking up rekordbox now.

[–] HeyThisIsntTheYMCA@lemmy.world 3 points 1 month ago

idk the software but multitrack audio editing sounds fun.

[–] lietuva@lemmy.world 3 points 1 month ago

i've been hitting up kaggle.com, freecodecamp and exercism.org for Python courses.

Selfhosting is a nice rabbit hole

[–] brown567@sh.itjust.works 3 points 1 month ago
[–] smh@slrpnk.net 2 points 1 month ago

I saw Krita was already suggested. Also give Inkscape a go. It's meant for vector graphics instead of raster. (like SVG vs jpeg).

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