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Khalid Ibne Hasan
Work6 selected projects · 2020 – Present

Things I've built,shipped, & the numbers behind them.

Each project here started as a complicated, manual, often unloved process, and ended as a system that quietly does its job. Click in for the long version.

Lab

Side projects

Small tools, built for myself.

Things I build casually to scratch my own itch, then publish to GitHub in case they are useful to someone else. Mostly little AI tools and workflow glue.

  • Chrome Extension · Manifest V3 · TypeScript

    AI Prompt Copilot

    A Chrome extension that adds a one-click “Improve Prompt” button to ChatGPT, Claude, Gemini, and Grok. It rewrites whatever you’ve typed into a sharper, more complete prompt before you send it, using your own API key, with nothing logged or routed through a third-party server. I built it because I kept hand-editing my own throwaway prompts and wanted the good-prompt habit baked into the input box.

    GitHub
  • MCP · Cloudflare Workers · Obsidian

    Obsidian MCP on Cloudflare

    A remote MCP server, deployed on Cloudflare, that exposes my Obsidian vault to Claude on any device. It turns a folder of markdown notes into a knowledge base I can query, and have Claude maintain, from web and mobile instead of just my desktop. I built it because my notes were stuck on one machine and I wanted them to travel with me.

    GitHub
  • PowerShell · Windows Terminal

    WT Session Restore

    A PowerShell tool that restores your Windows Terminal tabs after a reboot, each one back in its working folder and re-running its last command. It captures state quietly as you work and is built for forced or automatic shutdowns, where you never closed anything. I built it because I keep five to ten terminals open across different projects, mostly Claude and Codex sessions, and lost the whole layout every time Windows restarted.

    GitHub
  • reMarkable · Obsidian · Automation

    reMarkable to Obsidian

    An automation that pulls my handwritten reMarkable notes into my Obsidian vault on their own, so the thinking I do on the tablet stops living in a silo and joins the rest of my knowledge base. I built it because the notes I valued most were the ones stuck on the device, and copying them over by hand never actually happened. Full writeup on Substack.

    Read the writeup
Archive

Earlier work

Older projects, kept for context.

Freelance WordPress builds, university desktop apps, and a couple of NodeJS side-projects from the years before product. Not representative of current work. Kept here because some of these still help someone find me.