You do want to be that person that is not reachable. There is no value in being available 24/7 unless your job is oncall and responsible for addressing fires in

You do want to be that person that is not reachable. There is no value in being available 24/7 unless your job is oncall and responsible for addressing fires in real-time. Shut off slack, sign-off and coach people on how to reach you. They should rely on batch systems that you check a couple times a day or they can call or however else contact you in an emergency that requires real-time engagement. You can also do office hours, where you are reliably online and chatting at known and published time. Slack is cool because it makes everyone feel important in exchange for them giving up their time and productivity.