Technical field guide
The Critical Rendering Path
How browsers turn code into pixels. A tactical manual covering layout, paint, compositing, and practical DevTools performance workflows.
- 9 chapters
- Web performance
- DevTools
Idil Saglam, freelance software engineer in Paris
Available for new projects · Paris / Remote
Freelance software engineer.
I’m Idil. I enjoy making apps and tools for everyday problems, both for clients and for myself.
I’m currently building Catwlk, Evidella, and AlerteConso. When I need something that doesn’t exist yet, I build it and use it myself.
Selected work
Products I’m building now, plus selected work across AI and product engineering.
Catwlk
Read the garment before you buy: fabric, care, personal fit, and cost per wear across 15 retailers.
- Browser extension
- Building now
Evidella
A source-backed AI workspace for approved answers, questionnaires, and internal Q&A.
- AI
- Web
AlerteConso
Browse French product recalls with search, filters, and direct links to the official notice.
- Web
Au Petit Coin
Find public toilets in Paris, see what is nearby, and get directions quickly.
- iOS
Books
Practical technical writing for engineers who want stronger mental models, not more abstraction.
Freelance
Let’s talk about your project.
I’m available for freelance work. Tell me what you’re working on, and we can discuss the scope, timing, and whether I’m the right person to help.
Book a 30-minute call
Remote collaboration or Paris-based projects.
Community
Let’s stay in touch.
I write about software, AI, product decisions, and tools I enjoy using. If you’re working on something interesting, want to swap ideas, or simply feel like saying hello, I’d love to hear from you.
Say hello on X
Engineers, founders, and curious product people welcome.