MehBlah

Take a look at OPNsense which is open source or pfSense which is more commercial but still has a community version. Good documentation and will run on really old hardware as long as you have two Ethernet ports in the computer. Until last year my router was a 2007 dual core dell PC. I upgraded to a fifth generation I5.

I run the licensed version of pfSense on all the routers in my org. I have full tunnels between each location along with full blocking of malicious sites including all adult content. It may look complicated but if you want to learn how netowrking works you can do a lot worse.

I have no formal training but have been in IT for over thirty years.

Use mkvtoolnix and handbrake. You can quickly drop and add elements of a file with mkvtoonix and handbrake will convert most anything to H265. Its pretty fast with gpu encoding.