Is there any way to use this without a slack app?

[bashfulrobot]

Hi there. The title is pretty self-explanatory. Unfortunately, my workspace administrator will never authorize a custom Slack application for authentication. I assume there's no other way to use your tool, but I thought I would ask anyway.

Cheers.

[bashfulrobot]

This isn't the same kind of tool as yours, but it does use an alternative authentication method. Just posting it here in case it gives you some ideas.

https://github.com/shaharia-lab/slackcli

specifically this section. https://github.com/shaharia-lab/slackcli#2-browser-session-tokens-quick-setup