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Jess Investment

Quant-driven market insights powered by data and code. Python, algorithmic trading, and sector rotation analysis for modern investors.

Why I Mapped Cmd+Space to Raycast Instead of Spotlight: 4 Shortcuts

May 15, 2026May 12, 2026 by Jess Investment

I remapped Cmd+Space from Spotlight to Raycast. Same key, less friction. Here are the 4 shortcuts that made me stop going back.

Categories Dev Tools Tags Developer Productivity, keyboard-shortcuts, macos, raycast, spotlight, tool-reviews Leave a comment

5 Real Lessons from 2 Months with Claude Code

May 15, 2026May 11, 2026 by Jess Investment

After two months running Claude Code daily, here are the five practices that actually moved the needle. Don’t aim for perfect on day one.

Categories Experiments Tags ai-tooling, automation, claude-code, Developer Productivity, prompt-engineering Leave a comment

Canvas Breach Hits 8,809 Schools at Once — Dev Trends, Week 2 of May

May 15, 2026May 11, 2026 by Jess Investment

In one week: the largest SaaS breach on record, a 5-hour AWS outage, and back-to-back Apache/Linux RCEs. All three layers of the stack shook at once.

Categories Dev Trends Tags apache, aws, dev-trends, linux, Python, security Leave a comment

ChatGPT Mobile Just Broke Below 40% for the First Time

May 15, 2026May 10, 2026 by Jess Investment

ChatGPT’s US mobile DAU share dropped below 40% for the first time in three years. Here’s where the share went — Apptopia and StatCounter numbers, broken down.

Categories AI News Tags AI Tools, ai-market-share, chatgpt, Claude, claude-code, Cursor, gemini Leave a comment

Obsidian: The Markdown Note App That Lives on Your Disk

May 15, 2026May 10, 2026 by Jess Investment

Why I switched from cloud-first note apps to Obsidian — local .md files, free for personal use, and a 1700+ plugin ecosystem.

Categories Dev Tools Tags devtools, local-first, markdown, note-taking, obsidian Leave a comment

Rectangle: Buy Coffee Instead of Magnet

May 15, 2026May 10, 2026 by Jess Investment

After 4 years on Magnet, I switched to Rectangle one month ago. It’s free, lighter, and your shortcuts move over in one click. Here’s what I measured.

Categories Dev Tools Tags developer-tools, macos, open-source, productivity, rectangle, tool-reviews Leave a comment

6 Claude Features Most People Don’t Use (But Should)

May 15, 2026May 8, 2026 by Jess Investment

Six lesser-known Claude features that change how you use it: Projects, Custom Instructions, file uploads, Artifacts, Web Search, and Memory.

Categories AI Tips Tags ai-tooling, artifacts, claude-code, claude-projects, productivity Leave a comment

5 Claude Tips Most Developers Miss — Here’s What Actually Moves the Needle

May 15, 2026May 8, 2026 by Jess Investment

Five Claude prompting patterns I actually use daily as a developer — context window strategy, example-driven prompts, system prompts, step-forcing, and output formatting.

Categories AI Tips Tags ai-tooling, Claude, claude-code, Developer Productivity, prompt-engineering Leave a comment

Claude Code Tips: How CLAUDE.md and Custom Slash Commands Doubled My Productivity

May 15, 2026May 8, 2026 by Jess Investment

Stop repeating yourself to Claude Code. A single CLAUDE.md file plus a few custom slash commands turn repetitive instructions into one-line workflows.

Categories AI Tips Tags AI Coding, ai-tooling, claude-code, Developer Productivity, slash-commands Leave a comment

5 Hidden Claude Code Features That Doubled My Productivity — /btw, Plan Mode, and CLAUDE.md Done Right

May 15, 2026May 8, 2026 by Jess Investment

Five Claude Code features most users miss: /init, Plan Mode, /btw, /clear, and MCP. Small habits that cut wasted context and rewrites in half.

Categories AI Tips Tags ai-tooling, claude-code, Developer Productivity, mcp, plan-mode, slash-commands Leave a comment
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