A public 0.3.3 install. 64.3 real seconds.

Recorded on 24 September 2026 from a fresh virtual environment on macOS arm64, Python 3.14.6, and FFmpeg 9.0.1. The capture installs the exact public 0.3.3 wheel from PyPI, creates synthetic media, previews a web profile, encodes a result, probes its streams, and validates its receipt. The repository validator measured 64.3 seconds and rejected private home paths.

ArtifactPyPI 0.3.3

Duration64.3 s

HostmacOS arm64

MediaSynthetic / local

Frames from the recording

The frames are rendered from the original cast without changing its text. The frame manifest records source and image checksums, event times, and rendering details.

Plan captured at 39.651 seconds, before the output is written.

Result captured at 64.304 seconds after the local receipt passed validation.

Inspect or replay the evidence

• Download the original asciicast
• Read the complete accessible transcript
• Inspect the signed GitHub release, checksums, and artifact report
• Inspect the exact publication and six-cell public-install workflow
• Open the public PyPI files
• Verify the wheel Trusted Publisher attestation
• Verify the source distribution Trusted Publisher attestation
• Inspect the archived 0.3.2 recording
• Inspect the archived 0.3.1 recording
• Inspect the archived 0.3.0 recording
• Inspect the archived 0.2.2 recording

The published wheel is 101,753 bytes with SHA-256 872279bca79dbbf99a725dc0d3c2d682199852f9ce2d09e7d2abb7ea46b13e7c. The 342,712-byte source distribution has SHA-256 71f22070edfeccc3bdc0dfb0f0c94cacc603c341a6ad9ea509d21515f87c4438. The release SHA256SUMS and PyPI JSON match both artifacts.

To replay the cast with the open-source asciinema client:

asciinema play terminal-demo-v0.3.3.cast

To validate the recording and regenerate its transcript:

python scripts/validate_terminal_demo.py \
  --cast docs/assets/terminal-demo-v0.3.3.cast \
  --expected-version 0.3.3 \
  --transcript /tmp/terminal-demo-v0.3.3.txt

What the recording proves

1. The installed package came from the public PyPI wheel, checked by SHA-256.
2. doctor resolved the real FFmpeg and FFprobe binaries and their capabilities.
3. smoke-test generated local synthetic media and verified a thumbnail.
4. --explain showed the argument plan and preflight without writing output.
5. The run emitted progress, produced an H.264/AAC MP4, probed its streams, and validated the schema 1.0 receipt.

The fixture and output are synthetic. They do not establish quality on user media or support for every FFmpeg build. No personal media or telemetry was involved. See the compatibility policy and measured recipe evidence.