A Python framework for pane-canvas dashboards: Python declares the app (pane kinds, commands, hotkeys, lists, state) and a prebuilt React shell renders it, with no JavaScript to write. The shell is the Math, You workspace made generic: split panes, a command bar, hotkeys, a list drawer, server push over SSE, phone layout. The live demo above is the framework's own documentation, itself a Panelith app: searchable, with Show buttons that open the real pane beside the text and saved layouts. The Tour sample linked in its caption is one 300-line Python module, including a playable Boggle board whose trace gesture, countdown and score strip are built from Python-declared blocks. Built with Claude Code: I set the design, scope and interface decisions, reviewed each step and tested on device; the agent wrote most of the code.

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A self-hosted practice app for university math. A FastAPI backend stores authored calculus problems as YAML, generates seeded random variants, and grades both a typed math answer and a Python solution against a generated test suite; a React 19 workspace of tileable panes (problem, code, math pad, graph) is driven by a command palette. 74 Calculus III problems, 67 problem-family testers, 900+ tests.

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