Daily.co for Intercom - Free video calls & screen shares embedded in Intercom
PullReminders - Review and release pull requests faster with Slack reminders and metrics.
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emacs-slack - slack client for emacs. Contribute to yuya373/emacs-slack development by creating an account on GitHub.
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Wey - Fast open source Slack desktop app