Some interesting things that were posted during the aftermath of the ending of the show:

>https://x.com/mono_weekend/status/1940968825924764152
They re-recorded Sacchan's line to reflect her new way of addressing Sakurako (Shikishima -> Sakurako). They didn't re-upload the video on Youtube though.

>https://www.lisani.jp/0000285846/?show_more=1
Interview with Hajime Hyakkoku, the soundtrack composer. Lots of interesting stuff there. I didn't know that the dramatic and rock-like song was the main theme. Apparently he wanted it sound like an intense rock song, and indeed I always liked how rock it sounded, almost Houkago Tea Time-ish. Also funny how many of the BGM pieces were directly inspired by classic western songs like the Beatles' Love You To and the Zombies' Time Of The Season. He's also aware that many people find the soundtrack very similar to K-On's soundtrack.

I've been refreshing nyaa every day for the OST, but somehow no one has uploaded it. The character song album is not bad though. I appreciate the OP a bit more now thanks to it. Sakurako's song is pretty cute too.