from the deftones to touche amore, post-rock has long had a defining, if subtle, influence on a certain strain of contemporary punk rock, to the point that a discernible influence from the subgenre largely defines the strain of punk that has remained relevant in this century. so, i guess it was only a matter of time before the situation inverted.
that said, this isn't quite a post-rock band with influences from punk, either - it is certainly more directly in the lineage of a deftones or a touche amore than it is in the lineage of a caspian or a pelican. but, it flips the switch, nonetheless, and in the process often creates something that is maybe better described as "pink floyd goes doom rock" than using any kind of language i've previously deployed.
i'm still chewing on it, but bands that sound like this are the kind of thing i like to see in small bars, so i very well may have bit.
they have a few older records, but i'm not familiar with them. yet.
https://harborlightsma.bandcamp.com/