>>2032587The only difference between configuring regular i3 and i3-gaps is the couple of lines regarding the gaps. So you can follow this guide even if you're using i3 gaps.
As for installing i3-gaps it kind of depends. First of all, i3-gaps overwrites i3, so you can install i3 followed by i3-gaps. But it doesnt really matter as far as i know.
Actually getting i3-gaps on your system depends on what distro you're on. Manjaro has a package in their repository as well as an i3-gaps spin if you want everything set up for you. Arch has it in the AUR, but for most other distros you'll probably have to get it from github.
https://github.com/Airblader/i3I'm not particularly good at linux, but i recently swapped from manjaro i3 to ubuntu, and i literally just copy pasted the dependencies followed by the compile stuff on this page;
https://github.com/Airblader/i3/wiki/Compiling-&-Installing. Dont know how well this works on other distros, but on ubuntu it was fine.