Stay with Ubuntu LTS or go Debian.

Shit. Thank you.

I’m probably on it already on account that my docker service pulls the latest image on restart. Something I should change.

Aaah, good old plaster wire mesh, it’s kinda like a Faraday cage. I’ve lived in a condo with plaster walls and one room that had it all around was nearly impenetrable.

Warning about Unifi and mesh. I’ve done mesh using AC Pro, U6 Pro, AC LR. Any combination produces significant latency spikes that I couldn’t resolve no matter what. Support forums have reports of this problem too without an obvious solution. Maybe the U6 Mesh doesn’t suffer from this. Or maybe you haven’t noticed because you don’t have a sensitive workload. Either way, based on my anecdote, I’d caution against doing mesh with Unifi.

If you’re looking for top radio performance, not necessarily the fastest speed, get the Pro models, older gen / second hand if needed, especially if you have suboptimal physical conditions. E.g. concrete walls, metal, etc. I had AC Lite, AC LR and AC Pro in use at some point. All of them were very good but the Pro had the best overall radio performance. If you’re in a wooden house with drywall partitions, probably all would do well enough.

I used to use R7800s. Then switched to UAP AC Pro / U6 Pro. Today just tested the OpenWrt One.

• The R7800 (on OpenWrt) is superb, fast, reliable. Can’t say anything bad about it. One of the most successful wireless platforms I’ve used. Probably the best implementation of this chipset too.
• The UAP AC Pro / U6 Pro perform better than the R7800. They have significantly better radio performance. The range is longer, coverage is uniform, performance is more consistent within the covered area. Adding a local Unifi controller (can be done in Docker) adds some nice wireless and management features like band steering. They don’t work well for bridging / mesh though. I had to run a bridge at some point and a set of Unifi had significant latency spikes, making it bad for gaming and other low-latency applications. A R7800-to-R7800 wireless bridge in the same application was superb with consistently low latency. Unifi can be had for cheaper second hand. Lots of corpos have them and old units get dumped upon upgrades.
• The OpenWrt One, through my very limited testing shows great performance in good radio conditions. Once you put some obstacles for the signal, performance degrades much quicker than Unifi U6 Pro. In a particular test where the Unifi achieved 50Mbps, the OpenWrt One did 1.5Mbps. I haven’t compared it to an R7800. I don’t know if it would perform any better with different antennas.

Before that I’ve used R7000, WZR-300HP, WL-500g, WRT54G/L, among others, but none of these are relevant today. :D

Buy recertified enterprise grade disks from https://serverpartdeals.com/. Prices were around $160/16TB the last time I checked. Mix brands and models to reduce simultaneous failure. Use more than 1-disk redundancy. If you can’t buy from SPD, either find an alternative or buy external drives and shuck them. Use ZFS to know if your data is correct. I’ve been dealing with funny AMD USB controllers recently and the amount of silent data corruption I’d have gotten if not for ZFS is ridiculous.