Tessera answers: given where I live and the institutions I want access to, what is the cheapest legal combination of museum memberships that covers them?

Models the U.S. reciprocal-network landscape (NARM, ASTC, AHS, ROAM, MARP, ACM, AZA, Time Travelers), encodes per-network/per-institution exclusion rules as Datalog (Ascent), and solves membership-selection as weighted set-cover.

All-Rust stack, only generated JavaScript:

  • Leptos WASM SPA for the web UI
  • Ascent Datalog for rule encoding
  • Pure-Rust optimizer, zero C/C++ FFI
  • Local-first: user’s address never leaves the browser

Data is curated JSON with per-row provenance, shipped as rkyv zero-copy archives. Dual-licensed MIT / Apache 2.0.

Written with Claude / oh-my-pi running open models.