Top Tools from May 26 – Jun 1, 2026

  1. AGPL durable workflow engine in Rust, single binary with embedded SQLite or Postgres. Workflows run as WASM components and persist every step to an execution log for crash recovery. 650 stars. Featured via author's "SQLite is all you need for durable workflows" essay
    Hacker News discussion Workflow Engine 697 pts
  2. ISC-licensed rsync reimplementation from the OpenBSD team, now shipping in macOS 15. Spike in attention this week followed regression reports tied to AI-generated patches in upstream Samba rsync
    Hacker News discussion Developer Tool 472 pts
  3. Apache-2.0 high-performance LLM inference engine in C++ and CUDA, structured as a build-your-own walkthrough of a smaller vLLM. 678 stars since February
    Show HN discussion AI Tooling 195 pts
  4. GPL-3.0 end-to-end encrypted home security camera that runs on a Raspberry Pi — frames stay encrypted from sensor to phone, server only sees ciphertext. 1.5k stars
    Show HN discussion Self-Hosted 125 pts
  5. Apache-2.0 service that streams Postgres to Apache Iceberg on S3 via logical replication, and lets you query the Iceberg tables back over the Postgres wire protocol. 167 stars
    Show HN discussion Database 94 pts
  6. Apache-2.0 self-hosted email gateway that sits between your apps and Postmark, Resend, Mailgun, SES, or its own SMTP backend. 186 stars in a month
    Show HN discussion Self-Hosted 82 pts
  7. MIT CLI that flags AI coding-agent smells in a diff or codebase — narrative comments, swallowed exceptions, `as any` casts, dead code. 276 stars in three months
    Show HN discussion Developer Tool 72 pts
  8. MIT CodeMirror 6 markdown editor with Obsidian-style inline live preview — headings, lists, links and code render in place as you type, no separate preview pane
    Show HN discussion Developer Tool 59 pts
  9. Self-hosted MyFitnessPal alternative — food, fitness, water and health tracking with family sharing and AI-assisted logging. Non-commercial-only custom license (not OSI-approved). 4k stars since June 2025
    Reddit r/selfhosted discussion Self-Hosted 154 pts
  10. MIT self-hosted wiki shipped as a single Go binary — SQLite, Markdown on disk, no external database. 320 stars since March 2025. Bumped from v0.9 to v0.10 this week
    Reddit r/selfhosted discussion Self-Hosted 132 pts
  11. GPL-3.0 layer that adds object detection, tracking, mobile notifications and search to any existing security camera. v0.2.6 adds Qwen3 VL summaries of detection clips. 707 stars
    Reddit r/selfhosted discussion Self-Hosted 89 pts
  12. Independent benchmark of six self-hosted ebook server apps — Kavita, Komga, Calibre-Web-Automated, Stump, BookOrbit and Grimmory — across 10K to 150K-book libraries, measuring ingestion time, RAM and CPU. Repeatable synthetic dataset
    Reddit r/selfhosted discussion Self-Hosted 312 pts