I’m running it on an OpenWrt One and loving it. Not the best perf-per-dollar hardware but it does what I need at the moment, is completely open, and supports the project.
There’s a learning curve for sure. You might consider buying the cheapest possible router that supports it and experimenting with that on the side before overhauling your main network. $30-40 (or cheaper used) for the peace of mind of knowing you aren’t completely up the creek if something goes wrong.
For a “lean back” editor (as opposed to “lean in” like Vim or Emacs) that’s menu and mouse friendly while still being lightweight overall, sure, why not? Kate is good for that, Geany also good. You might also look at Sublime (not open source) or a clone like CudaText (open source, bit more of a retro UI).
I wouldn’t use those myself but my preferred posture is different. Use the glove that fits.