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Solo Developer Releases AI‑Built Open‑Source Clones of Adobe and Microsoft Apps

Built with Anthropic’s Claude Opus 5.5 in Rust, the early alpha suite offers partial feature parity, prompting legal and security questions.

Overview

  • This week Brandon Thomas published the ArtCraft suite on GitHub, offering free, permissively licensed reimplementations of Adobe Creative Cloud and Microsoft 365 apps that are downloadable now.
  • The projects were generated with Anthropic’s Claude Opus 5.5 and written in Rust to run natively and in browsers via WebAssembly, and the developer invites community contributions.
  • Project pages and reporting put the builds at alpha maturity with partial parity—for example, WordCraft lists about 88% of Word’s ribbon commands and the overall Microsoft set is described as roughly 50–60% complete.
  • Hands‑on reviews found PhotoCraft closely matches Photoshop’s look, menus, shortcuts and basic workflows but shows buggy edge cases and missing advanced features that make it unsuitable as a full replacement today.
  • Legal and security questions remain unresolved: clean‑room reimplementation may reduce direct copyright risk but look‑and‑feel, patent exposure, AI training‑data provenance, moderation on community forums, and long‑term funding and maintenance all pose open risks and next steps.