From the author's README on Thunderstore

Adds the entire PUREFLOW album by LESSERAFIM.

Playlists & Tracklist

PUREFLOW

LE SSERAFIM - Pureflow
LE SSERAFIM - BOOMPALA
LE SSERAFIM - CELEBRATION
LE SSERAFIM - Creatures
LE SSERAFIM - iffy iffy
LE SSERAFIM - Need Your Company
LE SSERAFIM - Sonder
LE SSERAFIM/Aliyah's Interlude - Saki
LE SSERAFIM - Irony
LE SSERAFIM - Trust Exercise
LE SSERAFIM - Liminal Space

Installation

Install via Thunderstore Mod Manager, or drop into your ReSkate launcher.

Install PUREFLOW LESSERAFIM

You need ReSkate and your own copy of skate. on Steam.

Open ReSkateLauncher.exe and go to MODS.
Search for PUREFLOW LESSERAFIM and click install. The launcher also installs anything it depends on.
Press PLAY. In game, the MODS tab of the ReSkate menu (Insert) turns it on and off.

Or install it by hand: download the .zip and drop it on the launcher window, or unzip it into its own folder in Mods\ beside Skate.exe.

Maps show up in the ReSkate menu's level list. To join a server running a custom map, you need the same map installed. If the game won't load after installing, see known issues.

skatemods doesn't host or review this mod. The download comes straight from Thunderstore. Only install mods you trust, because scripts can run code.