Essays by Jafran Hasan on developer tools, types, small languages, philosophy, religion, and field notes from the road.https://jaf.run/en-ushttps://jaf.run/en/articles/the-shape-of-a-good-cli/https://jaf.run/en/articles/the-shape-of-a-good-cli/Most CLIs are accidents. They evolve from a script someone wrote on a Tuesday. The good ones share a small set of choices made early: about defaults, verbs, and how silence should feel.Wed, 22 Apr 2026 00:00:00 GMTtoolsdesigndxmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/static-types-for-config-files/https://jaf.run/en/articles/static-types-for-config-files/A YAML file is a typed object whose type is hidden in a wiki page from 2019. We can do better, and the fix is mostly about where the schema lives, not what language it's in.Fri, 03 Apr 2026 00:00:00 GMTtypestoolingmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/notes-on-rebuilding-my-feed-reader/https://jaf.run/en/articles/notes-on-rebuilding-my-feed-reader/Third rewrite. Same UI, different engine. I keep arriving at the same shape: a list, a column, a single quiet keystroke for 'next'.Wed, 18 Mar 2026 00:00:00 GMTside-projectsrssmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/small-models-big-context/https://jaf.run/en/articles/small-models-big-context/An honest writeup of running a 7B model with a 200k context window in production for a month. What broke, what surprised me, what I'd skip next time.Fri, 27 Feb 2026 00:00:00 GMTmlinframail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/on-believing-things-you-cannot-prove/https://jaf.run/en/articles/on-believing-things-you-cannot-prove/Engineers are taught to distrust anything that can't be falsified. Faith, religious or otherwise, asks us to hold beliefs that resist that test. I've come to think both habits live in the same person, and they should.Mon, 09 Feb 2026 00:00:00 GMTphilosophyreligionmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/ssh-as-a-protocol-not-a-shell/https://jaf.run/en/articles/ssh-as-a-protocol-not-a-shell/If you only use SSH to get a terminal, you're missing the more interesting half. A tour of port forwards, multiplexing, and using SSH as glue.Wed, 21 Jan 2026 00:00:00 GMTnetworksunixmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/a-monastery-with-wifi/https://jaf.run/en/articles/a-monastery-with-wifi/The monks at Tango Goemba have a small server room behind a thangka. I went looking for silence and found a quiet conversation about attention instead.Tue, 30 Dec 2025 00:00:00 GMTtravelreligionnotesmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/a-year-of-running-from-a-laptop/https://jaf.run/en/articles/a-year-of-running-from-a-laptop/No cloud. No VPS. A loud fan and a domain name. What I learned about uptime, electricity, and the difference between a hobby and a habit.Thu, 04 Dec 2025 00:00:00 GMTinfraside-projectsmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/stoicism-is-not-a-personality/https://jaf.run/en/articles/stoicism-is-not-a-personality/The version of Stoicism that gets sold online is mostly aesthetic. The actual texts are stranger, quieter, and far more interested in other people than the LinkedIn version lets on.Wed, 12 Nov 2025 00:00:00 GMTphilosophynotesmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/the-quiet-keyboard-shortcut/https://jaf.run/en/articles/the-quiet-keyboard-shortcut/The best shortcut in any app I use is the one that does nothing. It just dismisses things. Esc, with care.Tue, 28 Oct 2025 00:00:00 GMTtoolsdxmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/two-weeks-in-a-japanese-cafe/https://jaf.run/en/articles/two-weeks-in-a-japanese-cafe/I spent fourteen mornings in the same coffee shop in Kanazawa, ordering the same thing, in a language I barely speak. Here's what happens to a draft when you remove every variable but the page.Mon, 15 Sep 2025 00:00:00 GMTtravelwritingmail@jaf.run (Jafran Hasan)https://jaf.run/en/articles/a-tiny-language-for-todos/https://jaf.run/en/articles/a-tiny-language-for-todos/I built a parser for the way I already write todos in plain text. Tags, dates, priorities, and a single character for 'maybe'.Fri, 22 Aug 2025 00:00:00 GMTside-projectslanguagesmail@jaf.run (Jafran Hasan)