I did not make this TAS, it was done by (at least) Stinger, WorseThanYou, Chunkatuff, Yagamoth, Vulajin, Ortho and Elipsys.
It was performed using a game-specific TASing framework, and I converted inputs to libTAS. Original inputs are public, so I think it is fine to store the movie here. If the authors want to submit this TAS one day, the movie file is ready.
#52821896824952159 - Celeste any% improved with epilogue
Movie that does the epilogue (just entering the house and skipping the cutscene). There are loadings that must be frame advanced: before the credits and after the credits.