I was going to recommend a couple of Mikrotik 5Ghz bridge devices, but for the same money this would probably be easier to set up.
I don’t understand why Mikrotik doesn’t make a 5Ghz Wireless Wire kit. Their 60Ghz WW is great, and already paired like this TP-Link kit. But 60Ghz is so sensitive to line of sight interference.
Different programs have different defaults.
But in your situation which would be more helpful - prevent this one docker command from using ipv6 (likely more difficult), or preventing all commands from using your broken ipv6 config (likely easier)?
I have no idea about the first. Maybe some people know this detail. But I’m sure that with a distro and version that you’re running, there are lots of people who could help with the second. Raspberry Pi 3B+ is the hardware. What software are you using?
Docker is a distraction in your problem description.
It’s like if you asked why the top gear in your car isn’t working and gave the model of car and engine type and gearbox. But it’s really that you’re stuck in slow traffic. Focus on the road name and destination to find a faster route.
For your problem, search for how to disable ipv6 for the Linux distribution and version that you have installed. You will find lots of guidance. Or share those details here for someone to help.
Or, better might be to see if there is a way to get ipv6 tunneling working on your connection. It may be possible even if the ISP is unhelpful.
This appears to be a 14500 lithium ion cell (same physical size as AA), putting out 3.7v for a device like this flashlight that supports it. No voltage step down, just charging circuitry on-board.
Nice. I’m aiming to go from bare metal to rootless podman managed via quadlets. Networking seems like the difficult part.