Home › Progress Progress Adaptive progress that looks right on a TTY and degrades off-TTY. Spinners for unknown-total, bars for known-total. Decisions byob-progress.1 — Progress as a narrow interface on the Factory byob-progress.2 — TTY-adaptive: spinner on TTY, rate-limited chatter lines off-TTY byob-progress.3 — Library pick: bubbles/spinner + schollz/progressbar, wrapped byob-progress.4 — Progress writes to ErrOut, never Out