This was lots of fun! I think I actually liked it better than the original it gets so lonely here, for pacing reasons: it feels more focusedly-told, with its shorter length and differently-laid-out branch-structure leaving less room for the story's progression to sag towards the middle.
One interface-question: when I was at the point of 100%-completion-as-best-I-could-tell—I made it to the point of (spoilers in rot13) univat gur abgrf haybpxrq va gur tnyyrel, naq hcba fgnegvat gur tnzr ntnva orvat noyr gb sbetrg rirelguvat va beqre gb erfrg tnzr-fgngr—the music gallery listed only seven tracks as playable, despite there being eight interface-slots for them. (The seven BGM tracks from throughout the main story, but not the credits-music.) Is this indicative of my having missed things more broadly, such that I should poke around more to find hidden corners of things that I missed on my initial passes?
(Also, somewhat-implicitly-spoilery fun theory I had during the middle parts of the story: for a decent chunk of the story I was thinking that gur znva punenpgref jrer obgu Ebfrggr, va fbzr fbeg bs gvzr-ybbc bs ure jvgpu-frys chfuvat ure abajvgpu-frys gb ybir ure hagvy riraghnyyl ure abajvgpu-frys jbhyq orpbzr n jvgpu naq yrg ure jvgpu-frys trg gb or gur nzarfvnp abajvgpu sbe n juvyr. This is not exactly what happened, but it was a fun possibility to imagine while it remained plausible!)