JJaden Vo58m ago · 8 min readHow Authenticator-App 2FA Codes Actually Work: Build a TOTP Generator in ~30 Lines (and Why It Beats SMS)TL;DR: An authenticator-app code is just HMAC-SHA1(secret, floor(unix_time / 30)), chopped down to 6 digits. The spec is RFC 4226 (HOTP) plus RFC 6238 (TOTP), and the whole algorithm fits in about 30 jadenvo259.hashnode.dev
ÇÇağrı Karakaya1h ago · 6 min readA smaller catalogue page without losing crawlable navigationOriginally published on DEV Community. Disclosure: This article was primarily drafted by an AI assistant using official documentation and a reviewed technical example. The code is a generic teaching ereceivesmsgo-notes.hashnode.dev
PPedram Badakhchani1h ago · 15 min readRandom vs Perlin noise in p5.js: from jumpy dots to flow fieldsTested with: p5.js 2.3.4 (the current release), Chrome, October 2026. Every sketch runs in the p5.js Web Editor: open one, press play, and press the keys listed under the canvas. If you are working tpedbad.hashnode.dev
LLevel UI4h ago · 9 min readFlutter vs React Native in 2026: one draws every pixel, the other borrows themMost "Flutter vs React Native" posts end in a benchmark. This one does not, because for the apps most teams are asked to build, the benchmark is not what decides it. The two frameworks get to the samelevelui.hashnode.dev
BBeta Templates4h ago · 3 min readFree Contractor Estimate & Invoice Generator (No Signup, Works on Your Phone)Most small contractors I talk to still write estimates in a notes app or a Word file they copy every time. It works until a customer asks for a clean PDF, or you forget to add tax, or two jobs end up betatemplates.hashnode.dev
JJake Mcdonald5h ago · 7 min readBest Next.js SaaS boilerplates in 2026By Jake Mcdonald, founder of ShipEmber · Updated October 30, 2026 · About a 10-minute read · Prices checked against vendor sites this week If you're about to build a SaaS on Next.js, you will eventualjakemcdonald.hashnode.dev
FFateh Muhammad13h ago · 3 min readI Don't Have a CS Degree. I Still Landed a $120k Remote US Tech Job - Here's HowEveryone says you need a Computer Science degree from Stanford to get a $120k job in the USA. That's a lie. I don't have a CS degree. I started from zero, from a small town, with a slow laptop. In 12 fatehtechinsights.hashnode.dev
IIdris Olubisi1d ago · 12 min readHow to Build a Documentation Site with ThallyI built and maintain Agent Lookout, an open-source tool for developers who run more than one AI coding agent at a time. It is a command-line tool, a local dashboard and a Mac app. It shows you the Cla24CNblog.idrisolubisi.com
SSyed Salman15h ago · 5 min readWriting a "Speaker Cleaner" in the Browser Without Lying to Anyone"Water in phone speaker" is one of those searches that spikes every summer. The usual fix people find is a page or app that plays a low tone to push the water out. I built one, a speaker cleaner, and a2ztools.hashnode.dev
Rrheme188h ago · 2 min readWhy I Built a Modern Post-Format Windows Assistant Using Electron and WingetHey fellow developers! We’ve all been there. You just finished a clean Windows installation, and now you have to spend the next two hours downloading browsers, installing runtimes, fixing annoying regrhemesetup.hashnode.dev
