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Prefix Caching · 05 Sept 2026 · 9 min read

Field Engineer's Guide to Prompt & KV Cache Tuning.

Notes from tuning the prompt behind an Antigravity auto-mode gate. Prefix caches match bytes from the left and give no partial credit, so a label that shifts by one re-prefills the whole payload. The seven ways I broke it, the one still in the code, and the tests that keep them out.

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Software Engineering · 15 Aug 2026 · 3 min

Remote Control for Google Antigravity: Secure Tailscale Access via Caddy

Access Google Antigravity remotely over your private Tailnet. This guide shows how to configure Caddy to bypass loopback Host header checks and stream SSE responses, set up systemd lingering for persistence, and install the interface as a mobile PWA.

How To · 14 Aug 2026 · 4 min

Automated RPM Repackaging with COPR: Bridging Standalone Binary Releases to DNF Repositories

Python · 08 Aug 2026 · 6 min

A Felted Yarn of Python and C++

Unravel the common thread binding these languages together. Explore interop solutions that tie the knot between rapid scripting and high performance.

LLM · 01 Aug 20261 min

FastFlowLM: Systemd memlock Limits.

Fix mmap(err=-11) in FastFlowLM by overriding systemd's 8 MB DefaultLimitMEMLOCK. Learn why PAM limits fail for user services.

How To · 08 Oct 2025 · 3 min

NetworkManager, systemd-resolved and DNS-over-TLS boarded a Deutsche Bahn train - Could not login to the WiFi to see the punchline

Struggling with WIFIonICE on your Linux distro? Your secure DNS configuration might be blocking the login page. This guide provides a quick fix to get you online on Deutsche Bahn trains without compromising your privacy on other networks.

How To · 31 Jul 2025 · 3 min

Run npm Packages Without Installing Node.js

Want to use an npm package without installing Node.js? Learn how to use a simple shell alias with Podman or Docker to run any tool in an isolated container. This keeps your host system clean while giving you on-demand access to any package. Here’s how to set it up.