Lazar Slavković-Raco

### What happened When running a script to send a text through `slack.NewHeaderBlock` it displayed that `runtime error: invalid memory address or nil pointer dereference` which referred to the `block_header.go:34`...

Repo is lacking contribution guide for this project.

Login with non-declaritive registry credential is overwriting `auth.json` of the previous credential when using `podman-docker`

2

Pasting this issue from the project https://github.com/containers/podman/issues/22400. Initially when you have already login from `registry.fedoraproject.org` using `podman login` then using `docker login` to the default registry. ### Steps to reproduce...