<p>In <a href="http://robots.thoughtbot.com/weechat-for-slacks-irc-gateway">a previous blog
post</a> we walked you
through setting up and configuring the text based chat client
<a href="http://weechat.org/">WeeChat</a> for use with the <a href="https://slack.com/">Slack</a>
<a href="https://en.wikipedia.org/wiki/Internet_Relay_Chat">IRC</a> gateway.</p>

<p>The blog post also explained how to set up
<a href="https://github.com/thoughtbot/weechat-slacklog">Slacklog</a> – a WeeChat script
for retrieving backlog from the…</p>

Read more at the source