Nicholas Clooney

Tagged “devops”

7 posts

Private Analytics With Umami, Docker Compose, and Ansible

I wanted first-party analytics on my blog without handing traffic data to a SaaS vendor. Umami checked every box: open source, self-hostable, and friendly to privacy. I already keep a small VPS online 24/7, so dedicating a slice of that machine to Umami felt like a perfect fit.

Analytics turned into a blind spot once I shut off the usual trackers. I needed something:

Setting Up Rust Securely (Without the Blind `curl | sh`)

Rust is one of the most thoughtfully designed languages of our time — but setting it up on macOS can feel oddly opaque. The standard advice is to run a one-liner like curl https://sh.rustup.rs | sh, which works beautifully but hides a lot of what’s happening behind the scenes. For developers who are more security-conscious or just prefer to know what’s being installed and where, this default approach can feel like a black box.

This post explores the different ways to install and manage Rust on macOS — from the convenience of Homebrew to the flexibility of rustup, and the transparency of manual or containerized setups. The goal is simple: give you control and understanding without sacrificing practicality.

How I Accidentally Exposed My Umami Dashboard (and What I Learned)

Recently, a few hours after setting up Umami with Docker and Nginx on my VPS, I stumbled into a misconfiguration that left the admin dashboard exposed to the public web. Thankfully, there was no immediate danger. Since right after creating Umami's docker instance, I have updated the admin username and password immediately, and locked it down before anything bad could happen. Still, it was a stressful reminder that small mistakes in deployment can have big consequences.

Here’s the story of what happened and what I learned along the way.

Running Docker on macOS Without Docker Desktop: My Journey With Colima

Like a lot of developers coming from Linux or a server environment, I hit some confusion when setting up Docker on my Mac. On Linux, you just install Docker and it works natively. On macOS, it’s a bit different — there’s no native Docker Engine because we don’t have a Linux kernel. That’s where tools like Docker Desktop and Colima come in.

Let me walk through what I’ve learned.

Wrestling Safari and Cloudflare: Debugging Umami Analytics

I spent the better half of today getting Umami analytics to cooperate with a static blog served through Cloudflare and an Nginx proxy. The tracking script was having issue in Safari (CORS) and Firefox (nothing showed up in the Developer Tools' Network tab).

This is the story of following the trail from mysterious redirects to CORS ghosts and finally to Firefox’s stealthy sendBeacon API.

Debugging Tailscale on UK Mobile Networks: A Journey into NAT, DERP, and IPv6

What started as a simple question — "Why can’t I reach my MacBook over Tailscale from my iPhone on mobile data?" — turned into a deep dive into NAT types, relay servers, and the hidden power of IPv6. This post documents the technical journey, the dead ends, and the final conclusion.

So the mystery: why do VPS connections work, but Mac connections fail?