Welp, it turns out Solid's (or Vinxi's ?) SSR workers still run in NodeJS so utilizing Bun's SQL or S3 pieces won't work still. Uh.. back to the drawing board.
Maybe I’m simply spoiled by meta frameworks, but I’m gonna try migrating the frontend to SolidStart. I’ll need client interactivity soon anyway, and SolidJS has the Bun adapter plus Zero sync engine plugin I want to explore for something else.