Awesome

localslackirc

The idea of this project is to create a localhost IRC server that functions as a gateway for one user of slack, that can connect to it with whatever IRC client they prefer or a bouncer like ZNC and keep using slack from IRC even after they shut down their IRC gateway.

Why? Peace of mind!

Using slack from IRC instead of web app offers several advantages:

You do not see all the gifs other people post.
You can silence @here notifications for selected users and channels where they are abused.
You can /ignore users who bother you (can't do that on slack).
Leaving channels on slack is hard, normally I get invited back continuously on the off topic channels. With localslackirc you can leave them on the IRC client without people knowing that you won't be reading any of that.
IRC clients allow to customise notifications. For example I have set mine to just blink in the tray area and do no sounds or popups.
Any IRC client is faster than the web ui slack has, and it will respect your colour and style settings.
Power savings. Because that's a logical consequence of not doing something in the browser.

IRC Channel

#localslackirc on oftc