Status: deferred by the maintainer (2026-10-26). Published for the record; not part of the current implementation round. Do not assign or start.

Parent

#590

What to build

Singing works on the phone: fetch on demand, cache with a budget, offline pins, stems with vocal volume, synced lyrics.

Acceptance criteria

• A song downloads when played and stays in the budgeted media cache; playback starts from a range stream before the file completes; interrupted downloads resume
• A cache budget evicts least-recently-played songs first; an option limits downloads to Wi-Fi; pinning exempts songs and the library marks what is available offline
• Published stems play the accompaniment with adjustable vocal volume; songs without stems play the original and say stems are missing
• Stored Word-timed and Line-timed Lyrics show in sync

Blocked by

• #611 (Remote Repository core: verified asset fetch with range resume)
• #615 (Remote Repository core: media cache with byte budget and pins)
• #626 (Phone: read-only library UI)

Context for implementers

• Spec: #590 (problem statement, solution, implementation and testing decisions)
• Exploration notes: /home/factory-user/openkara-notes/590-remote-repository.md
• Implementation happens on the shared integration branch; claim with gh issue edit <this issue> --add-assignee [@me](/me) and report progress in comments.