Pi v0.86.1: adds Meta Muse provider and fixes WSL clipboard

Pi Changelog @PiChangelogOriginally posted 2026.09.20

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Pi v0.86.1 is out! Highlights: - New Meta Muse provider: sign in with /login meta or set META_API_KEY to access Muse Spark models. - Repeat launch time reduced by enabling Node's persistent compile cache before loading the CLI runtime. - Clipboard copy fixed in containers and WSL without WSLg: OSC 52 fallback restored, Windows clipboard backend added for WSL. - Cerebras models no longer advertise unsupported strict tool schemas, fixing HTTP 400 errors on mixed tool calls. Complete details in thread ↓