I've got a Raspberry Pi 4 B, what can I do with it?

Mine is directly connected to my router, measures my Internet connection every five minutes and sends the report to one of my servers. Every time I'm facing connection problems and the focking support of German Telekom doesn't believe me I make a beautiful Excel report from my collected data.
Pretty german right 😄

Since many years my raspberry run yunohost yunohost.org/ and i can do self hosting for emails documents and many other things

Well, you can install over it portainer and docker and start your homlab!
Or use OpenMediaVault and create a NAS for your home.
Look at this website if you want, it has a lot of interesting projects!

pimylifeup.com/

The best thing I ever did with a raspberry was set up a pi hole for a network wide ad block, and Nextcloud to switch my cloud storage, pictures, contacts and calendar from google to my own domain.

I can also see a email server, small-scale webserver or a NAS come in handy.

If you've got something to monitor (Website Analytics, Page Speed, Server logs, 3D Printer, Plant water status) and visualize, Pis are the perfect tool for that.

Or take a look at all the weird black magic Jeff Geerling does.

I'm making a system called "Host Bridge" which is intended to bind a system of headless servers to a UI I'm building.

The UI is a React project and is open-source. Here's a demo: speaker.app/

1 is running a music server (I wrote)
1 is running a movie server (I wrote)
An old phone is my remote control.
2 security cameras (pycamera and opencv)
1 security camera hub (use ML to tell if the garage door is open)
1 I use as a desktop for app development

And there is sooooo much more you can do with them

Happy Coding

Haven't played with mine in a while but I was usually using it for automated webscraping and simple bots

Three projects that stick out in my mind:

• Twitter bot that would watch Elon Musk's Twitter and send me a text whenever one of his tweets mentioned a particular keyword
• Bot that would enter every giveaway on a book website (usually a couple hundred a day) Had to turn that bot off because I was winning literally dozens of books and it was taking over my bookshelf 😅
• Girlfriend was looking for a pair of rollerskates during the shortage in 2020 so I wrote a bot that would watch the product listing she wanted and text us as soon as they were back in stock - it worked!

As portable mini PC for a dev work where it can be hooked to a car dashboard/monitor or some random monitor when traveling. Also, scavenging a monitor from unused/broken laptop works too. Just need LVDS-to-HDMI which bridge between the monitor and RPi mini HDMI slot. As for keyboard, using smartphone or $5 mini wireless keyboard+touchpad (usually for tv box) works but it need some time to get used to this setup.

Mine holds:
Airsonic
Transmission daemon
Amule daemon
Nextcloud
Tor
PiHole
FressRss
Wireguard
3 calibre instances (one per library)

All dockerize except for transmission (due to file administration needs).
It suffers when rebooting and when doing heavy work with nextcloud or airsonic, but for the rest, all good.

Hi Thomas, you can drop by to balenaHub (hub.balena.io) an app-store for IoT projects which you can deploy on your raspberry pi 4 computer with ease. The applications on balena devices works as individual docker containers so you can host like say :

• Pi hole ad blocker
• A private VPN
• Home automation server
• NAS
• media player etc on same device.

There are a lot of projects submitted by community like converting your raspberry pi to multi-room audio streamers, or apple airplay server.

Check it out and let me know if that helps, cheers :)