Reviews of the most interesting devtools and latest beta releases.
Here's the latest newsletter sent on 2026-06-11.
Each week we review 2—3 of the most interesting developer tools. Here's what we featured this week.
Semantic Git diffs.
Provides a higher-level abstraction to understand what changed in the code e.g. showing function names added/removed. Includes a dependency graph to highlight what might be impacted by a change. Supports JSON output for LLMs to better analyze changes.
Useful starting point to understand changes before you get into the details using Git.
Agent terminal multiplexer.
TUI for tmux-style persistence for multiple AI agent sessions. Easily detach, reattach, and work locality or remotely over SSH. Works with your existing terminal. Keyboard-first, but supports the mouse. Agents can use it to operate their own workspaces. Has a mobile-optimized view.
Live handoff for updating a running Herdr server works well, but is still technically experimental so don’t rely on it yet.
Here's the interesting beta and early access releases we featured this week.
Integrated Linux environment on macOS.
io_uring-based HTTPS server.
Self-hostable Wasm sandbox for JS.
Durable execution inside Postgres.
ASCII art generator.
Local-first web sync engine.
Database.
Discussions with the people behind the most interesting devtools.