merge upstream collaboration features#16
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…aco (leanprover-community#91) Add collaboration feature based on y-monaco. Collaborators keep their code in-sync over peer-to-peer communication. People get a random colour out of ~6 which is consistent for all participants. Hovering over a code line reveals the name associated on a name. Each participant has there own connection to the Lean server. The only thing which is synchronised is the editor content. Any combination of room name & password opens a new room. There is no rejection of passwords. Mobile: * The feature is mobile-compatible, but without hover, there is currently no way to see the participants name over the cursor * Removed Lean logo on mobile to save space.
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switching 'can I trust this proof' to side menu when collaborating, and enabling selective emphasis of collaborate and comparator in the header bar
robsimmons
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July 18, 2026 19:14
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