https://blog.stackfoundry.cloud Programmer. Notes on software, self-hosting, and things I'm building. Thu, 25 Jun 2026 19:02:05 +0000 https://blog.stackfoundry.cloud/posts/hello-world https://blog.stackfoundry.cloud/posts/hello-world Thu, 25 Jun 2026 00:00:00 +0000 Why this site exists and how it's built. https://blog.stackfoundry.cloud/posts/pinning-a-nixos-flake https://blog.stackfoundry.cloud/posts/pinning-a-nixos-flake Fri, 19 Jun 2026 00:00:00 +0000 Reproducible hosts mean never saying "works on my machine" about a server. https://blog.stackfoundry.cloud/posts/tracing-a-404-through-traefik https://blog.stackfoundry.cloud/posts/tracing-a-404-through-traefik Fri, 12 Jun 2026 00:00:00 +0000 A missing route looks identical to a broken app until you read the right log. https://blog.stackfoundry.cloud/posts/dns-behind-a-firewall-allowlist https://blog.stackfoundry.cloud/posts/dns-behind-a-firewall-allowlist Fri, 05 Jun 2026 00:00:00 +0000 An open resolver is an abuse magnet. Allowlisting is the cheap fix. https://blog.stackfoundry.cloud/posts/tiny-static-site-generator https://blog.stackfoundry.cloud/posts/tiny-static-site-generator Thu, 28 May 2026 00:00:00 +0000 You don't need a framework to turn markdown into HTML. https://blog.stackfoundry.cloud/posts/forward-auth-vs-oidc https://blog.stackfoundry.cloud/posts/forward-auth-vs-oidc Tue, 19 May 2026 00:00:00 +0000 One gates a route; the other gives an app real user accounts. https://blog.stackfoundry.cloud/posts/docker-layer-ordering https://blog.stackfoundry.cloud/posts/docker-layer-ordering Fri, 08 May 2026 00:00:00 +0000 Copy what changes least, first. The cache does the rest. https://blog.stackfoundry.cloud/posts/self-hosting-matrix https://blog.stackfoundry.cloud/posts/self-hosting-matrix Mon, 27 Apr 2026 00:00:00 +0000 Synapse, a well-known file, and the federation tester. In that order. https://blog.stackfoundry.cloud/posts/rate-limiting-with-crowdsec https://blog.stackfoundry.cloud/posts/rate-limiting-with-crowdsec Tue, 14 Apr 2026 00:00:00 +0000 Parse the access log, decide who's abusive, bounce them at the proxy. https://blog.stackfoundry.cloud/posts/terraform-null-resource-footguns https://blog.stackfoundry.cloud/posts/terraform-null-resource-footguns Sun, 29 Mar 2026 00:00:00 +0000 It's glue for the things providers can't express. Mind the triggers. https://blog.stackfoundry.cloud/posts/backups-that-actually-restore https://blog.stackfoundry.cloud/posts/backups-that-actually-restore Sun, 15 Mar 2026 00:00:00 +0000 An untested backup is a hope, not a backup. https://blog.stackfoundry.cloud/posts/explain-without-crying https://blog.stackfoundry.cloud/posts/explain-without-crying Sun, 08 Mar 2026 00:00:00 +0000 The query planner is talking to you. Learn the vocabulary. https://blog.stackfoundry.cloud/posts/wireguard-in-15-minutes https://blog.stackfoundry.cloud/posts/wireguard-in-15-minutes Thu, 26 Feb 2026 00:00:00 +0000 A VPN you can actually understand, in about 30 lines of config. https://blog.stackfoundry.cloud/posts/the-case-for-boring-technology https://blog.stackfoundry.cloud/posts/the-case-for-boring-technology Sat, 14 Feb 2026 00:00:00 +0000 Novelty is a cost you pay in production at 3am. https://blog.stackfoundry.cloud/posts/structured-logging https://blog.stackfoundry.cloud/posts/structured-logging Tue, 03 Feb 2026 00:00:00 +0000 Log events, not sentences. https://blog.stackfoundry.cloud/posts/healthchecks https://blog.stackfoundry.cloud/posts/healthchecks Thu, 22 Jan 2026 00:00:00 +0000 A container that's "up" isn't necessarily working. https://blog.stackfoundry.cloud/posts/git-bisect https://blog.stackfoundry.cloud/posts/git-bisect Fri, 09 Jan 2026 00:00:00 +0000 Stop reading diffs one by one. Let git find the bad commit. https://blog.stackfoundry.cloud/posts/a-year-of-self-hosting https://blog.stackfoundry.cloud/posts/a-year-of-self-hosting Sun, 28 Dec 2025 00:00:00 +0000 The services that earned their disk space, and the ones that didn't. https://blog.stackfoundry.cloud/posts/reverse-proxies-plumbing https://blog.stackfoundry.cloud/posts/reverse-proxies-plumbing Mon, 15 Dec 2025 00:00:00 +0000 One public door, many rooms behind it. https://blog.stackfoundry.cloud/posts/idempotency-is-a-superpower https://blog.stackfoundry.cloud/posts/idempotency-is-a-superpower Tue, 02 Dec 2025 00:00:00 +0000 Run it twice, get the same result. Now retries are safe.