v1.0.0 — first complete local-first release studio

Nelson Release Studio 1.0.0

First complete Windows-first, local-first release of the music creation-to-release packaging workbench. It includes song and album management, lyrics and timing tools, cover exports, lyric-video rendering, release checklists, release packages, backups, and YouTube/SoundCloud copy fields with limit checks.

Distribution boundary

• This is a Windows-oriented source distribution with a prebuilt web UI. Python 3.10+ is required; setup may install Python dependencies.
• Core data stays on local disk and core workflows do not require cloud accounts or paid API keys.
• The app does not log in to, upload to, or publish on YouTube, SoundCloud, or other cloud services.
• FFmpeg is strongly recommended and is installed separately by the user; it is not included in this archive.
• faster-whisper, numpy, and mutagen are optional runtime dependencies and are not required for the core workflow.

Verified release evidence

• Source commit: e8a74865b0392d89a3f74d44bfc36a029beb248f
• Artifact: Nelson-Release-Studio-latest.zip
• SHA-256: BA0EE15F915483CD4D32568D1FF680C6EA1BE7295F8D8F6FA2BD2FDE9BAB8045
• Size: 2,347,584 bytes
• Default-branch CI: Ubuntu backend/frontend/typecheck/build/Playwright and Windows package gates passed on the source commit.
• Packaging: source junction rejection passed; two package runs were byte-identical; generated checksum files matched; the 172-entry ZIP passed required-entry, excluded-entry, timestamp, and CRC checks.
• Clean-extract smoke: setup succeeded with Node removed from PATH; the prebuilt UI served successfully; /api/health reported 1.0.0; demo seed, all 14 checklist results, release package generation, and manual backup passed.
• Real FFmpeg smoke: a 24-second 1920x1080 MP4 rendered successfully with video and audio streams and valid duration.

Download the ZIP and the matching .sha256 sidecar below, then verify the checksum before setup.