Slack is a convenient messaging platform, even though there&#x27;s nothing particularly innovative about it. It&#x27;s essentially a web-based IRC client with a few obvious enhancements (object embedding, built-in cross-channel search, etc.).<p>Slack is one of the most popular things to clone now that people realize that businesses will use an IRC clone if it&#x27;s packaged correctly, so I wouldn&#x27;t go putting all your eggs in the basket of Slack&#x27;s longevity as a company.