Jeryl Donato Estopace — software engineer and solution builder in Manila. Ships end-to-end products: web apps, iOS apps (Namna), AI apps (sajj), and developer tools (obsidian-cli.nvim, pyworks.nvim, citruszest-ghostty.nvim, dev-session-manager). Research on AI-human workflow boundaries at AIM (MIB). https://jeryldev.com/ Mon, 20 Apr 2026 01:00:12 +0800 Mon, 20 Apr 2026 01:00:12 +0800 Jekyll v3.10.0 I built an offline iPhone app that estimates when your money could be enough — starting from Filipino take-home pay and local vehicles like MP2, PERA, SSS, and GSIS. Here's why, and what I learned along the way. Sat, 18 Apr 2026 00:00:00 +0800 https://jeryldev.com/blog/2026/04/18/namna-financial-independence-for-filipinos/ https://jeryldev.com/blog/2026/04/18/namna-financial-independence-for-filipinos/ React Native Expo TypeScript Personal Finance Philippines Mobile I built a Neovim plugin for Obsidian as a thin wrapper over Obsidian's official CLI — not a Lua reimplementation of the vault format. Here's why 2,000 lines beat 4,500 lines once the official CLI shipped. Sun, 12 Apr 2026 14:00:00 +0800 https://jeryldev.com/blog/2026/04/12/obsidian-cli-nvim-wrap-dont-reimplement/ https://jeryldev.com/blog/2026/04/12/obsidian-cli-nvim-wrap-dont-reimplement/ Neovim Lua Obsidian Developer Tools Open Source I've been getting the 'can AI handle my workflow?' question enough times to want a serious answer. So I built a free tool that decomposes any business process, scores each step against four criteria, and generates a build spec you can paste into Claude Code or Cursor. It also feeds my graduate research at AIM. Sun, 29 Mar 2026 10:00:00 +0800 https://jeryldev.com/blog/2026/03/29/sajj-ai-workflow-analyzer/ https://jeryldev.com/blog/2026/03/29/sajj-ai-workflow-analyzer/ AI Gemini React Vercel Supabase Research MIB I wanted my terminal and my editor to use the exact same 16 colors — not just close enough, the same hex values. So I shipped a Neovim colorscheme that shares a palette with Ghostty. Thu, 26 Mar 2026 12:00:00 +0800 https://jeryldev.com/blog/2026/03/26/citruszest-ghostty-nvim-colorscheme/ https://jeryldev.com/blog/2026/03/26/citruszest-ghostty-nvim-colorscheme/ Neovim Lua Ghostty Colorscheme Developer Tools Open Source I spent four weekends building my first Apple Watch app with an accompanying iPhone companion. Designed it, coded it, submitted it, and got rejected under Guideline 5.2.5 — a trademark issue. Here's what I learned, and why I'm genuinely fine with it. Wed, 18 Feb 2026 12:00:00 +0800 https://jeryldev.com/blog/2026/02/18/first-app-store-rejection-guideline-5-2-5/ https://jeryldev.com/blog/2026/02/18/first-app-store-rejection-guideline-5-2-5/ iOS App Store watchOS Indie Lessons RingTrack I built a Neovim plugin that brings Jupyter-like notebook workflows to the terminal with zero configuration. Here's why I created it and how it works under the hood. Sun, 25 Jan 2026 00:00:00 +0800 https://jeryldev.com/blog/2026/01/25/pyworks-nvim-python-notebooks/ https://jeryldev.com/blog/2026/01/25/pyworks-nvim-python-notebooks/ Neovim Python Lua Developer Tools Open Source I got tired of manually creating the same tmux windows every time I switched projects, so I built a tool to automate it and published it as a Homebrew tap. Sun, 25 Jan 2026 00:00:00 +0800 https://jeryldev.com/blog/2026/01/25/dev-session-manager-tmux-automation/ https://jeryldev.com/blog/2026/01/25/dev-session-manager-tmux-automation/ tmux Bash Developer Tools Homebrew Productivity Most Claude Code CLI MCPs work great once configured, but server-dependent MCPs like Tidewave need to connect to specific project endpoints. Here's how I automated the connection management for seamless project switching. Tue, 17 Jun 2025 00:00:00 +0800 https://jeryldev.com/blog/2025/06/17/dynamic-mcp-management/ https://jeryldev.com/blog/2025/06/17/dynamic-mcp-management/ Elixir Phoenix AI DevTools Automation MCP Claude Tidewave