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I use Express.js when a project needs a reliable and flexible backend without unnecessary complexity.
I typically use it to build:
• REST APIs for web and mobile apps
• Authentication and user management
• Backend services and integrations
• Database-driven applications
• Payment and third-party API integrations
• Custom middleware and request validation
• File uploads and server-side processing
I usually pair Express.js with Node.js, PostgreSQL or MongoDB, and tools like Postman for testing APIs.
For me, Express.js is especially useful when I need a backend that is simple to develop, easy to scale, and flexible enough to adapt as the product grows.
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An interlocking gear-train workbench with true ratios and brass-blueprint charm.
I built this project to test An interlocking gear-train workbench with true ratios and brass-blueprint charm. The core engineering challenge was sustaining uncompromised 60 FPS rendering using Canvas2D while handling continuous user interaction without framework overhead.
WHAT I WAS TESTING:
I focused on two core engineering benchmarks:
Real-time gear mesh torque transfer and escapement tick mechanics
Interactive placement of interlocking brass gears with variable ratios
THE TECHNICAL SIDE:
Implements true involute tooth profiles computed via parametric equations. Rotational speeds are propagated through an adjacency graph of connected gear nodes.
Everything executes in the browser using Canvas2D, Mechanical Gear Physics, Involute Gear Tooth Profiles. No third-party frameworks, no heavy runtime bundles, and zero external tracking.
WHAT I LEARNED:
Floating-point precision drift caused gear teeth to gradually overlap after several minutes. Clamping phase angles to gear pitch intervals solved the drift.
Finding the sweet spot between mathematical precision and frame budget took careful profiling, but the result runs at a steady 60 FPS even on modest hardware.
TRY IT YOURSELF:
The live build is deployed on Netlify. Open it in your browser, test the controls, and observe the render response times.
If you are building high-performance 3D, physics, or creative web systems and want to collaborate, reach out here on Contra.
Built by Samin Sami | Developer & 3D Experimentation
Steampunk vibe👍
Real Estate Webapp
A responsive frontend real estate application featuring a polished UI and optimized layouts for a premium property-browsing experience.
nice one, the big property photos make sense here. i'd give the text over them a bit more contrast though, especially the location
I-Sale (demo shopping webapp)
A dynamic online store optimized for discovery and interaction, featuring a real-time live search interface and a streamlined checkout mockup for seamless navigation from cart to completion.
Lovely 😍