Meta: Infrastructure and Developer Experience

[satra]

Umbrella issue for infrastructure, tooling, and developer experience.

Sub-issues

• Task: Add a CLI interface to senselab #233 Add a CLI interface to senselab
• container based operations #339 Container-based operations (partially addressed by subprocess venvs)
• Task: PPGs and SPARC Feature Extraction Enhancements #422 PPG and SPARC Feature Extraction Enhancements (remaining items from PR B2ai feature extraction enhancements #412)

Scope

Improve developer and user experience: CLI for common operations (#233), expand container/isolation strategies beyond subprocess venvs (#339), and finalize PPG/SPARC enhancement items (#422).

Current state

• Subprocess venvs handle most dependency isolation (SPARC, PPG, CoquiTTS, NeMo, continuous SER)
• Docker used for MediaPipe pose estimation
• No CLI interface exists