Two people, one document, no refresh button.

Realtime is not a feature you add. It is a decision about who owns the truth, and every interface question downstream — what happens on a conflict, what happens offline, what the second cursor looks like — falls out of that one answer.

What we build: Collaborative editingPresence and cursorsAuthoritative game loopsLive dashboards
Typical stack: CRDTs / YjsWebSocketsCloudflare WorkersRedisPostgres
Examples: CanVasReIN BotTermTypoSolidusFTC

Realtime — selected work

Services: Product DesignEngineering
Tools: TypeScriptYjsCloudflare WorkersWebSockets
Industries: RealtimeDev Tools
Year: 2026
Status: live

CanVasRealtime collaborative rooms pairing a shared block-editor document with a shared Excalidraw canvas — join by room name, no accounts, synced live via Yjs over a Cloudflare Worker.

Services: Product DesignEngineering
Tools: PostgreSQLSupabaseFFmpegGitHub Actions
Industries: Realtime
Year: 2026
Status: live

ReIN BotGuess the anime from its opening — multiplayer party game with server-side fuzzy answer matching, curated 20s clips, and an all-free-tier stack.

Services: Product DesignEngineering
Tools: PythonTypeScriptWebSockets
Industries: Dev ToolsRealtime
Year: 2026
Status: live

TermTypoTerminal-first multiplayer typing test — ranked 1v1 races, an ELO ladder and a global leaderboard, cross-play between the CLI and a companion web app.

Services: Product DesignEngineeringApp Development
Tools: ExpoReact NativeSupabase
Industries: MobileRealtime
Year: 2026
Status: live

SolidusReal-time multiplayer Bingo on Expo and Supabase — ranked auto-matchmaking, private rooms and bot practice, with a leaderboard tracking wins and win rate.

Services: Product DesignEngineering
Tools: Next.jsSupabaseTypeScript
Industries: Realtime
Year: 2026
Status: live

FTCRealtime multiplayer card game with a server-authoritative rules engine.

From the blog

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ReactNext.jsEdge FunctionsThree.jsGLSLSupabaseLenisJetpack ComposeGoFramer MotionYjsExpompvKotlinuse-gestureTypeScriptNodePostgreSQLSplitTypeCloudflare WorkersGSAPWebSocketsMatter.jsLevenshteinGroqShikiEmblaReact NativePL/pgSQLPlyrllama.cppTailwindpnpmExpo RouterpartyserverlocalStorageEAS BuildDurable ObjectsExcalidrawSharpZodGitHub ActionsPythonJNIGBNFBlockNoteFFmpegVercelCRDTWebGLCanvas 2DPlaywrightnanoidZustandHydraxSwiftShader