What are some alternatives?
When comparing Slack Gitsin and Shlack, you can also consider the following products
Missions - Create custom workflows for Slack
Slack Metabot - Whoa, a Slack command-line client inside Slack.
PullReminders - Review and release pull requests faster with Slack reminders and metrics.
slackcat - Post command line output directly to Slack.
Wey - Fast open source Slack desktop app
emacs-slack - slack client for emacs. Contribute to yuya373/emacs-slack development by creating an account on GitHub.