LiteIDE VS Geany

Not common, but worth a mention: I've been using LiteIDE (https://github.com/visualfc/liteide/releases/latest) since Atom + Go dev ceased development.

There is liteide too: https://github.com/visualfc/liteide Is not super amazing but it does the job and since is purely for Go it has a few nice features. And it's very lightweight!

I mostly use VS Code, too (or rather VSCodium), but also recommend you try LiteIDE as it's exceptionally fast.

If this is the kind of thing you are interested in, I would strongly recommend LiteIDE:

http://liteide.org/en/

https://github.com/visualfc/liteide/releases

It's actively developed, FOSS (LGPL), native C++ (Qt), runs on Windows/macOS/Linux, supports go.mod, and uses gocode/gotools for intellisense instead of gopls. It has integrated debugging, go to definition/usages, and some refactoring support.

"technically" https://github.com/visualfc/liteide as that's an IDE

right on the main page, there is a screenshot. If you click it, it takes you to more screenshots.

Open https://www.geany.org/ in a web browser like chrome or firefox

When I installed my IDE I just wanted something lightweight, so I went with Geany. I've been using it for years without trouble.

Link: https://www.geany.org/

Take a look at Geany https://www.geany.org/ which uses scintilla under the hood and is blisteringly fast and lightweight and plugin friendly as well as FOSS.

AntiX is definitely going to be the fastest of the recommendations here. I have it on a Core Duo with 2G Ram and I am really a very big fan of that distro. It is all there, sometimes it takes a bit of time to get use to its quirks, but it is worth powering through. You have the option of three lightweight window managers and then there are two file managers that are used to give you some desktop functionality. Take some time to learn which one of those options you like the best. Here is a screenshot of my setup after fiddling with it a bit. For a lighter weight text editor/IDE check out Geany.

Another FAST editor -- they call it a mini IDE -- for C++ and a bunch of other languages is Geany https://www.geany.org/

I did copy-paste your fenced code into an editor (geany). Some of the indentations use tabulators, other explicit spaces. I recommend to stick either with one, or the other. Note, good editors allow you to use the tabulator key and -- on the fly the editor inserts (an adjustable number of) explicit spaces into the source code. In case of geany, this is available from the GUI via Edit -> Preferences, then Editor -> Indentation. Get in touch with your peers/colleagues, and adjust this accordingly (e.g., 2, 3, 4 spaces per tabulator key/indentation level; frequently either 2, or 4). Once if you all agree on a format in common, exchange, maintenance and collaboration (think e.g., GitLab/GitBucket/GitHub) is going to be considerably easier. (No, I don't know if there is bash code reformatter as e.g., fprettify for Fortran, yapf/black for Python [where indentation actually is functional], or rubocop for Ruby.)