The server in the middle had a bad week.

Iroh is a peer-to-peer networking library — Rust at the core, with Python, Node, Swift, and Kotlin bindings — that swaps dialing IP addresses for dialing public keys. You connect to a device's identity, and Iroh handles QUIC, multipath, and encrypted NAT traversal to find the shortest path between two machines as they move networks. The 1.0 is a stability promise: any v1 endpoint talks to any other v1 endpoint across minor versions and languages, and the wire protocol is frozen for the 1.x line.

The relays are the tell. n0's public relays help two machines punch through firewalls, then step out once a direct path exists — and they're open-source if you'd rather run your own. More than 200 million endpoints hit them in the last 30 days, so this is past lab-toy stage. Delete the rendezvous server, TURN box, and reconnection glue you wrote to keep two clients talking. Tradeoff: you trade an IP problem for a key-distribution one, and the very first handshake still leans on a relay.

Kage is a Go CLI (go install, MIT, 1.7k stars) that mirrors a website for offline viewing — but it renders each page in real headless Chrome, waits for it to settle, snapshots the DOM a human would actually see, then deletes every script and rewrites CSS, images, and fonts to local paths. kage clone grabs the site, kage pack compresses it into a ZIM archive or a single self-contained executable, and kage serve previews it.

The JavaScript deletion is the part that matters. You get the rendered result without the trackers, the paywall scripts, or the chance the page does something different tomorrow — a frozen, inert copy you own. Delete the wget --mirror incantation and the SingleFile extension; it lands closer to ArchiveBox without the server. Tradeoff: snapshotting kills anything genuinely interactive (search boxes, app UIs), and "the DOM a human would have seen" depends on Kage's headless Chrome seeing what you would.

Macro is an open-source command center that folds email, chat, tasks, docs, calls, an agent layer, and a CRM into one app with shared memory across all of it — Rust and SolidJS, AGPLv3 (their words: "not open core"), 264 stars. The team dogfooded it for two years to replace their own Superhuman-plus-Slack-plus-Notion-plus-HubSpot-plus-Linear stack, and you can self-host the whole thing or use their hosted version.

The pitch is less "another workspace" than "stop renting five proprietary silos that don't talk to each other." Bidirectional @-linking and team-level agent memory are the connective tissue the SaaS bundle never gives you, because each vendor wants to own its slice. Delete the monthly stack of closed tools you've wired together with Zapier. Tradeoff: self-hosting is still work-in-progress setup, it's a16z-funded ($30M) so the stays-open-forever question is fair, and swapping five mature tools for one young one is a migration, not a toggle.

Revi is on-device voice dictation for Mac, Windows, and Linux that runs Whisper, Parakeet, or Apple's local engine — no cloud, no account, no telemetry, a 12 MB download. It detects across 25-plus languages, automatically goes silent in password fields, and bundles a clipboard manager. It's a one-time €7.99, built by someone who got tired of dictation apps that "send my voice to their servers and charge ~$15/month forever."

That sentence is the whole pitch, and it's the right one: speech-to-text is exactly the workload with no business leaving your machine, and local models are now good enough that it doesn't have to. Delete the Wispr Flow or superwhisper subscription. Tradeoff: it's paid and closed-source despite the local-first stance, the category is crowded, and on-device accuracy still trails the big cloud models on messy audio and rare jargon.

The kicker. DevCleaner is a free, no-account, 4 MB macOS app that reclaims the disk space your dev and AI tools quietly hoard — Xcode DerivedData, Gradle and npm caches, Docker layers, and, newly relevant, the model weights and caches from Ollama, LM Studio, Cursor, Claude, and Gemini CLI across 22 ecosystems. Everything runs locally; it never touches your conversations, logins, or settings.

The detail that makes it usable is a three-tier risk rating: pure caches are marked safe and auto-selected, slowly-regenerating items need a manual tick, and SDKs that would break your environment are shown but never deletable. Delete CleanMyMac and the rm -rf one-liners you keep in a notes file. Tradeoff: it's Mac-only, and clearing a cache just means paying to rebuild it the next time you need it.