Architecture insights and trends.
Data-backed reports on real software architectures from verified submissions. No guesswork, no synthetic filler.
8 published reports, computed from the live directory.
- Report October 2, 2026 648 verified stacks
Jev for Developers: What 648 Open-Source Repos Built in Two Weeks (2026)
Jev, TypeSafe's System One model, returns typed decisions instead of text. What 648 open-source Jev repos use, where it fails, and three app architectures.
648 open-source repositories built around Jev were created on GitHub by 27 September 2026, twelve days after TypeSafe opened early access Read the report 6 min read - Report October 2, 2026 32 verified stacks
Building Web Apps in Rust in 2026: DHH, AI Agents and What Open-Source Rust Actually Uses
DHH is rewriting HEY in agent-written Rust. What 32 open-source Rust apps actually use (Axum, Tokio, sqlx) and four Rust web stacks with AGENTS.md files.
13 of 18 open-source Rust apps in the directory that depend on a web framework use Axum (4 use Actix Web, 1 uses Rocket) Read the report 7 min read - Report September 25, 2026 115 verified stacks
September 2026 Production Stack Trends: TypeScript Runs 76% of 115 Open-Source Architectures
September 2026 stack trends from 115 verified open-source architectures: TypeScript in 76%, PostgreSQL in 57%, Rust in 26%, and 46% AI-assisted delivery.
76% of 115 verified production architectures are built with TypeScript (87 of 115) Read the report 2 min read - Report September 25, 2026 113 verified stacks
AGENTS.md vs CLAUDE.md vs .cursorrules: Which File Each AI Coding Tool Reads (2026)
Which instruction file do Cursor, Claude Code, Codex and Copilot read? Plus what 113 audited open-source repos actually ship: AGENTS.md, CLAUDE.md, .cursor/rules.
79% of the 62 audited open-source repos that ship an AGENTS.md also keep a CLAUDE.md next to it (49 of 62) Read the report 4 min read - Report September 11, 2026 105 verified stacks
Vibe Coding Statistics 2026: AI Coding Agent Adoption Across 105 Production Open-Source Stacks
Vibe coding statistics 2026: 43.8% of 105 production open-source stacks use AI-assisted or agent-heavy delivery. Data by language, team size, category.
43.8% of 105 verified production open-source stacks ship with AI-assisted (hybrid) or AI-agent-heavy delivery pipelines Read the report 15 min read - Report September 7, 2026 105 verified stacks
Top 10 Production Tech Stacks in 2026: Architecture Breakdown of 105 Open-Source Leaders
Top 10 production tech stacks in 2026: In-depth architecture breakdown across 105 verified open-source leaders like Next.js, Supabase, FastAPI, and MinIO.
105 production open-source architectures audited across 10 battle-tested engineering archetypes Read the report 16 min read - Report August 29, 2026 48 verified stacks
August 2026 Production Stack Trends: PostgreSQL Powers 71% of Open-Source Architectures
August 2026 stack trends: PostgreSQL powers 71% of open-source architectures. Real data on databases, frameworks, and AI-agent development modes.
71% of all verified architectures run on PostgreSQL for primary relational persistence Read the report 2 min read - Report August 29, 2026 48 verified stacks
Most Popular Tech Stacks in Modern Open-Source Software (2026 Breakdown)
Most popular tech stacks powering iconic open-source projects like Cal.com, Supabase, Dub, Sentry, and PostHog. Verified 2026 architecture benchmarks.
85% of high-growth open-source projects standardize on TypeScript monorepos and PostgreSQL persistence Read the report 3 min read