Alternatives to RPi?

UPDATE - March 13, 2023:
Recently Flightradar24 has upgraded version from 1.0.25-3 to 1.0.34-0

Current instructions are as follows

STEP-4: Next install fr24feed

First determine your Machine’s Architecture / OS by output of following command

uname -m

If output of above command shows your Machine / OS is i386, use OPTION (1) below.

If output of above command shows your Machine / OS is x86_64 OR amd64, use OPTION (2) below.

 

OPTION (1): If your Machine / OS is i386

wget https://repo-feed.flightradar24.com/linux_x86_binaries/fr24feed_1.0.34-0_i386.deb  

sudo dpkg -i fr24feed_1.0.34-0_i386.deb 

sudo fr24feed --signup

 

OPTION (2): If your Machine / OS is x86_64 OR amd64

wget https://repo-feed.flightradar24.com/linux_x86_64_binaries/fr24feed_1.0.34-0_amd64.deb 

sudo dpkg -i fr24feed_1.0.34-0_amd64.deb 

sudo fr24feed --signup

NOTE:
When running command “sudo fr24feed --signup”, after entering your details, you will see following message. Please say yes to autoconfig option

We have detected that you already have a dump1090 instance running. We can therefore automatically configure the FR24 feeder to use existing receiver configuration, or you can manually configure all the parameters.

Would you like to use autoconfig (yes/no)$: yes

sudo systemctl restart fr24feed 

sudo fr24feed-status 

# To check/modify configuration, edit this file 
sudo nano /etc/fr24feed.ini