Lazyweb: I have local servers that have HTTP(s) endpoints for doing Special Events.
What's the easiest way to get a physical button that I can stick some batteries into, and it'll trigger that HTTP call (over the wifi) when I push the button?

like I know I could build this with an arduino/rp2040 but is there some existing thing I can reuse for this? like, including the battery and the button housing?