Wondering what the limitations of the demo are and do the saves carry over to full version...

So, I installed Tunnet again on a machine with different hardware then last I played it. It's got an Intel Arc A770, which is what mostly sets it apart. After some time playing the game, not long at all, I get random screen flicker on the bottom 60-80% of screen where it turns black, then freezes up my computer for a while (can't get to Windows). I tried again, same thing happens, but this time around I can't use right mouse click in windows after the crash. Third time, after a reboot, I got somethin...

I've got the nightclub code and the locked door says I need to enter the code. Where?

Given there's no dedicated tool in game for merging two incoming lines onto one outgoing line, I was curious what solutions people had come up with to solve this problem. Best I have so far is a junction and filter design that bounces one line off the filter and back into the junction. Did a 1000 hours MS paint diagram so it's easier to understand: https://i.imgur.com/Icmwfkz.png...

so I searched through discussions and there's conflicting information because I guess this was updated at some point. I understand you can get rid of the hackers by routing the virus packets to security, but my question is do they just endlessly respawn? If so it seems kind of pointless, is there a way to turn them off for completion sake?...