A collection of shorter thoughts, quick updates, and things I’ve learned that don’t warrant a full blog post.
Let’s Debug provides a way to test if your domain is set up to correctly answer Let’s Encrypt challenges.
Oracle cloud doesn’t enable any ports other than SSH by default, which somehow doesn’t affect any Tailscale services but breaks the ability to negotiate a TLS certificate over ports 80 and 443.
Finally managed to find a workaround for the Rust problem I was having with cargo publish picking up files from my gitignore-d .direnv directory and complaining about them being uncommitted. This was the result of cascading surprises: setting package.includes causes gitignore to no longer be considered, and "README.md" in package.includes actually works like "**/README.md"’ and picks up the READMEs from the repositories in .direnv/flake-inputs/. Upstream issue: https://github.com/rust-lang/cargo/issues/12294#issuecomment-2171044946
Grafana has a helper in its config files called $__file{/path/to/file} that will read the file at runtime, making it easier to configure secrets via Nix.
SDKMAN can symlink existing Java installations into its own managed thing so we can have the best of both worlds by installing Java from Homebrew but managing the JAVA_HOME with SDKMAN.
GitLab CI pipelines can be executed locally using firecow/gitlab-ci-local This used to be a first party feature within the official gitlab-runner binary but they deleted it citing maintenance burden. What a shame.
Caddy has a handle_path directive that you can use to host services that don’t like being hosted on paths, it will strip the prefix for the underlying service so it sees just the root domain
In Nix it is possible to replace a call to builtins.map with lib.catAttrs if the transformation is just pulling out a field. For example: builtins.map (item: item.field) list can instead just be catAttrs "field" list.
Nix CLI’s flake info subcommand is great to find duplicate inputs, nix-melt is too much manual labor.
In Jetpack Compose you can use rememberUpdatedState to capture values that may update over time but without a full restart of the rememberUpdatedState function.
