AI drives up memory costs by up to 90% and causes a shortage of the cheapest mobile phones

EU shop rules: what developers need to change this weekend

If you build or maintain online shops for EU customers, three rules changed this year, and one of them starts tomorrow, Sunday 27 September 2026 .

2026-09-26 ·dev.to

A Curve Fitter That Refuses to Answer

Code: Megapixel99/undetermined Plenty of libraries fit a curve to measurements and hand you back a number. undetermined hands back a number with the error bar it was decided by, plus an explicit…

• Library fits curves to measurements with error bars and reasons
• Refuses wrong answers by validating observables' seeds, plateaus, and differences
• Updated error bars use metrological combined standard uncertainty formula

2026-09-26 ·dev.to

Gas Optimization Audit: Venus Core Pool

Gas Optimization Audit: Venus Core Pool Target Protocol : Venus Core Pool (TVL: $1351.3M) Gas‑Optimization Audit Report Protocol: Venus Core Pool (Ethereum & L2) TVL: ≈ $1.351 B (as of 26 Sep 2026)…

• Venus Core Pool has six gas inefficiencies inflating transaction costs.
• Key inefficiencies include redundant storage reads/writes and unbounded loops.
• Implementing optimizations could save $2-4 million annually on fees.

2026-09-26 ·dev.to

Handling File Uploads in Web Apps: Best Practices Every Developer Should Know

File uploads are one of those features that seem simple on the surface but quickly become complicated in real-world applications.

2026-09-26 ·dev.to

Why GA4 DebugView is not showing events and how to fix it

Google Analytics™ 4 DebugView is the built-in tool to inspect events as they arrive. When events do not show up, the issue can be in the browser, in the network, or in the GA4 settings.

• Inspect browser using DevTools to identify network issues
• Verify measurement ID aligns with intended GA4 web data stream
• Enable debug mode or set debugmode: true in configuration

2026-09-26 ·dev.to