I added Mermaid diagram support so posts can embed flowcharts and diagrams directly in Markdown. This meant pulling in the astro-mermaid integration alongside mermaid itself and registering it in astro.config.mjs with the neutral theme.

I also added a postinstall hook that installs netlify-cli globally if it isn’t already on the path, so a fresh npm install leaves me with everything needed to deploy without a separate manual step.