FWIW, I found LocalSend (https://localsend.org/) to be quite handy especially since it is a cross-platform solution.
There's also https://snapdrop.net which works in the browser
P.S.: the source repo mentioned in the comment (https://github.com/MiUnlockCode/albertsimlockapple) is 404.
[1] https://github.com/JJTech0130/pypush/blob/main/albert.py#L16
You'd think your tech demo would check to see if your AI was hallucinating!
> Sidecar containers are a new type of containers that start among the Init containers, run through the lifecycle of the Pod and don’t block pod termination. Kubelet makes a best effort to keep them alive and running while other containers are running.
[1] https://github.com/kubernetes/enhancements/tree/master/keps/...