Synth Workshop v0.6.0

Synth Workshop v0.6 connects local and hosted optimization to durable evidence. Runs can launch, stream events, cancel contained process trees, survive restart, and reopen from their recorded artifacts.

Local Qwen MLX SFT

Real resident Qwen LoRA training on Apple silicon.
Durable launch, event, checkpoint, cancellation, restart, and reopen contracts.
Paired held-out before/after evaluation bound to the adapter and template digests.
The release proof improved all 8 held-out items, with mean loss moving from 0.3085489 to 0.00502864.

Optimizers and evidence

Hosted SFT and LoRA jobs share one typed Workshop surface.
Reports and charts preserve immutable optimizer-run bindings.
Outputs recover independently from durable artifacts after restart.
CISPO and evaluation contracts fail closed when a runtime does not advertise the required capability.

Verification

Workshop source: 58c99e2f33f85b4a3b5160a47f1df76ca1f701ed.
Containers source: 56de8c8acfc7f5f1e116fdf9ea84c80423f6f46e.
ZIP SHA-256: 8c47d773a25c80c91468e9b4a1c3a3a391d027cb073631500b15c83b11fefe56.
The packaged app uses bundle ID com.synth.desktop, version 0.6.0, and passed strict deep-signature verification before and after ZIP round trip.

Distribution

This Apple-silicon macOS ZIP is ad-hoc signed and not Apple-notarized. On first launch, macOS may require Control-click → Open or System Settings → Privacy & Security → Open Anyway.

Download v0.6 from usesynth.ai/download.
Verify the ZIP against the SHA-256 above before opening it.
Release history: usesynth.ai/workshop/releases.

Local Qwen MLX SFT

Real resident Qwen LoRA training on Apple silicon.

Durable launch, event, checkpoint, cancellation, restart, and reopen contracts.

Paired held-out before/after evaluation bound to the adapter and template digests.

The release proof improved all 8 held-out items, with mean loss moving from 0.3085489 to 0.00502864.

Verification

Workshop source: 58c99e2f33f85b4a3b5160a47f1df76ca1f701ed.

Containers source: 56de8c8acfc7f5f1e116fdf9ea84c80423f6f46e.

ZIP SHA-256: 8c47d773a25c80c91468e9b4a1c3a3a391d027cb073631500b15c83b11fefe56.

The packaged app uses bundle ID com.synth.desktop, version 0.6.0, and passed strict deep-signature verification before and after ZIP round trip.

Distribution

This Apple-silicon macOS ZIP is ad-hoc signed and not Apple-notarized. On first launch, macOS may require Control-click → Open or System Settings → Privacy & Security → Open Anyway.

Download v0.6 from usesynth.ai/download.

Verify the ZIP against the SHA-256 above before opening it.

Release history: usesynth.ai/workshop/releases.