I live and die by IRC and have often said "irssi is my panopticon."
I've customised the hell out of how it highlights (between channels and queries I have over 1,000 open at any given time), but it doesn't get to send me notifications or make any noise, I tab across to it every so often and read and clear the notifications then.
I use bitlbee to gateway to most non-IRC services plus a paid irccloud acccount to connect to Slack.
I'm not sure any of this is going to help but it works for me so I'm sharing on that basis.
I've customised the hell out of how it highlights (between channels and queries I have over 1,000 open at any given time), but it doesn't get to send me notifications or make any noise, I tab across to it every so often and read and clear the notifications then.
I use bitlbee to gateway to most non-IRC services plus a paid irccloud acccount to connect to Slack.
I'm not sure any of this is going to help but it works for me so I'm sharing on that basis.