https://jkm.dev/posts/Recent content in Posts on jkm.devHugoen-GBSat, 28 Oct 2023 00:00:00 +0000https://jkm.dev/posts/geographical-coordinates-from-map-projection/Sat, 28 Oct 2023 00:00:00 +0000https://jkm.dev/posts/geographical-coordinates-from-map-projection/<p>Given a flat projection of a world map and an x/y coordinate on that projection, how can we derive the corresponding latitude/longitude on the globe?</p>https://jkm.dev/posts/creating-tag-index-pages-with-gatsby/Sun, 08 Oct 2023 00:00:00 +0000https://jkm.dev/posts/creating-tag-index-pages-with-gatsby/<p>I gave Gatsby a trial run when creating a blog site. When using GitHub pages, one of the things I&rsquo;d always longed for was dynamic tag &ldquo;index&rdquo; pages for my blog posts.</p>https://jkm.dev/posts/easy-vm-updates-with-ansible/Thu, 05 Oct 2023 00:00:00 +0000https://jkm.dev/posts/easy-vm-updates-with-ansible/<p>I have a load of VMs running on a physical server in my house. I started with a few VMs and a manual process, but now I have many VMs and I&rsquo;m tired of updating them all.</p>https://jkm.dev/posts/cities-skylines-trading-market/Wed, 24 Feb 2021 00:00:00 +0000https://jkm.dev/posts/cities-skylines-trading-market/<p>I wanted to find out how <strong>Cities: Skylines</strong> drives the constant motion you see in a growing city - residents looking for jobs, tourists visiting attractions, garbage trucks doing their rounds, even cims looking for love - and I couldn&rsquo;t find much written up about it. So I decompiled the game and dug in. What I found is that almost every interaction in the game runs through a single, elegant system: a stock-market-style trading market.</p>