I personally have this setup po, 3 Mi Home Security Cameras connected to a PLDT Home Prepaid Wifi router(Evoluzn FX ID-5) with Rocket Sim; it works well naman po been using it a few months now, it's very stable naman.
Some vim keys po: press 'i' to enter insert mode, do your edits # to comment out a line.
Then press ESC to enter normal mode again, then ":wq" to save and exit. If you made some mistakes you press ":q!" to quickly exit without saving, ":q" to also exit a file.
Also in normal mode you can press...