Luis Colunga's Blog
Latest posts
tls_checker: Quick TLS Checks for a List of Hosts
tls_checker is a command-line tool for running concurrent TLS checks against a list of hosts. It resolves DNS, completes the TLS handshake, reports the negotiated version, checks ALPN, probes HTTP/2 …
Trying Pencil.dev on My Hugo Blog
I saw Pencil.dev floating around on Twitter and tried it on this site. At a glance, it’s a design mockup tool. The part I cared about is that it plugs into MCP both ways: it can drive Claude Code and …
I Switched to WezTerm
I switched to WezTerm today. I should have done it earlier. Setup was simple: brew install --cask wezterm, it picked up ZSH by default, and I swapped the Terminal dock icon for WezTerm. Then I did the …
Test Driving Jules: Google's Coding Agent
I’ve seen Jules mentioned a few times by Google engineers on X, but I didn’t pay much attention until I noticed the logo up on agents.md website. That overlap made it worth testing: less out of …
ip_exit_enum: Discovering Public Exit IP Addresses
ip_exit_enum is a command-line tool for discovering and enumerating public exit IP addresses by querying multiple independent STUN and HTTP services. It’s designed to reveal non-deterministic outbound …
Clean Up Your X For You Feed
At some point the For You tab on X (formerly Twitter) decided I needed nonstop updates about topics I never cared about. The culprit lives under Settings → Privacy and safety → Interests, where the …