Setting up WIFI without keyboard and ssh

My use case is to run a monitor at an event (like maybe a convention) I generally won’t know the wifi until the morning of the event. I am looking to an easy way to set up the wifi. My original plan was to connect to the pi via my phone to set up the wifi, but apparently that is no longer an option. I can plug the sd card into my windows laptop, but I won’t be able to connect up a wire and ssh to it.
So the question is, how can I easily set up the wifi in this situation?
So far I’ve tried to set up wpa_supplicant.conf following the instructions from the “wifi not working” post. But I can’t get that to work. At the moment the only way I’ve been able to set up the wifi is either do it at install time, or sshing in (and pretty much every method at that point works)
I am using a pi4 with a fairly recent Anthias release (late Dec 2024) I am runing raspberry pi lite.
Maybe Anthias isn’t the solution for me either, as I just need to display some web pages, with the ability to change the webpages remotely.

@wgsfracing,

  • As of now, one of the most reliable way is to SSH to the Pi and, set up the Wi-Fi via nmcli or nmtui. I would suggest to try the latter, nmtui, as it’s more visually intuitive than the former.
  • Let me take a look at the Docker service that sets up the Wi-Fi when there’s no connectivity and investigate why it’s not starting properly.

Thanks for the response. IF I can SSH, then getting the wifi setup is no problem. I think I’ve used all the suggestions including raspi-config.
But the problem is, when I am onsite I won’t be able to SSH in, without wifi connection. I won’t have a wired connection to SSH in. I will only have my phone and my windows laptop.
I originally started down this route because the documentation said that I could connect to the device with my phone if no network was set up.
I would also rather not have to bring a keyboard just so I can set up wifi.

Thank you for your help