Building my own home audio speakers

I wasn't sure if this was a good fit in this forum or if it should have gone into Everything Else. If it doesn't fit I am happy to abandon and try again.

My wife and I finally were able to buy a house last year and she has gone ALL-IN on random projects. She took a carpentry class and enjoyed it so much that she has now acquired a moderate amount of equipment.

I stumbled across an article in one of my feeds about vinyl audio talking about building your own loudspeakers. I investigated some and found that there is an entire niche market of audio components and speaker kits catering to a broad range of hobbyists interested in creating their own speakers from very inexpensive to insanely expensive.

I have enough knowledge of basic soldering and electronics. Like many here at GWJ I build my own PCs and am generally pretty good at following directions. I am not concerned with the final product saving me money on higher end components because I assembled them myself. I am genuinely just interested in learning about audio/sound in a non-theoretical way. I have found that textbook learning is the least exciting and effective way for me to internalize and really understand new concepts. So I am looking to increase my knowledge and play around in a new hobby space while hopefully spending quality time with my wife on a project we can both contribute towards.

Has anyone ever done something like this? Any advice, tips, or guidance on how/where to start?