Developer Articles | TechForDev

Latest AI / ML JavaScript Python React Next.js Web Dev DevOps Cloud

Your SaaS is probably leaking money right now — and you don't know it

Lolo2d ago • 4 min read

Your SaaS is probably leaking money right now — and you don't know it

Most indie developers ship their SaaS, celebrate, and move on. Security feels like something for...

#security#webdev#saas#javascript

16 2

At 50 users, PostAll's pipeline never dropped a single job. At 500, it dropped dozens — and the database was the least of my problems.

Aakash GourJun 18, 2026 • 6 min read

At 50 users, PostAll's pipeline never dropped a single job. At 500, it dropped dozens — and the database was the least of my problems.

The week we crossed 500 active users, three things broke in the same 48 hours: Postgres connections,...

#buildinpublic#growth#saas#devops

1 0

Quita: How a Personal Problem Became a Real Product — and What I Learned Along the Way

Cleber Lucas2d ago • 4 min read

Quita: How a Personal Problem Became a Real Product — and What I Learned Along the Way

There's a piece of advice you hear constantly in the developer world: "build projects to learn." The...

#buildinpublic#saas#java#ai

1 0

How we built multi-tenant isolation in NestJS that even a junior dev can't break

joah levien6d ago • 2 min read

How we built multi-tenant isolation in NestJS that even a junior dev can't break

About a year ago, a junior dev on our team wrote a cleanup job that nuked records without a tenant.....

#typescript#saas#nestjs

0 0

Why We Built Our Entire SaaS on WhatsApp Instead of Email (And What Happened Next)

Durgesh Kumar14h ago • 4 min read

Why We Built Our Entire SaaS on WhatsApp Instead of Email (And What Happened Next)

A founder's technical and product decision that changed everything — and 76 studios across 50+...

#entrepreneurship#programming#buildinpublic#saas

0 0

SaaS Globalization Strategy: Technical Preparation for Chinese, European, and US Markets

sweet1d ago • 8 min read

SaaS Globalization Strategy: Technical Preparation for Chinese, European, and US Markets

Expanding a SaaS product into global markets requires more than translation — it demands...

#saas#localization#puppet#globalization

0 0

The subscription bugs that quietly let SaaS users keep access for free

Jon Galarraga1d ago • 5 min read

The subscription bugs that quietly let SaaS users keep access for free

My first teardown was about one-time checkouts — the /checkout route bugs that show up right before....

#stripe#saas#webdev#payments

0 0

I Built an AI Idea Machine — 7 Shipped Products in 6 Days

Scot Gardner4d ago • 2 min read

I Built an AI Idea Machine — 7 Shipped Products in 6 Days

Six days ago I woke up with the same problem I've had for years: I love building things but stumble....

#ai#indiehackers#swift#saas

0 1

Where foreign dev-tools quietly lose the Japanese market — and a free index to check your own

greymoth4d ago • 4 min read

Where foreign dev-tools quietly lose the Japanese market — and a free index to check your own

Most foreign dev-tools don't lose Japan because Japanese developers dislike them. They lose it...

#i18n#opensource#saas#japan

0 0

AI can write the code. It can't tell you when the product is done.

Velobase6d ago • 3 min read

AI can write the code. It can't tell you when the product is done.

I built an AI slide-deck generator on top of Velobase Harness — type a topic, get a presentation. Th...

#ai#saas#opensource#webdev

0 0

Multi-Tenant Data Isolation in SQLite: Per-User Database Files vs Row-Level

HelperXJun 18, 2026 • 9 min read

Multi-Tenant Data Isolation in SQLite: Per-User Database Files vs Row-Level

When you build a multi-tenant SaaS, the first big architectural decision is how to isolate tenant...

#database#sqlite#architecture#saas

1 0

How I Set Up HAProxy + ProxySQL on a Single OVH VPS for My Solo SaaS

DockSky2d ago • 6 min read

How I Set Up HAProxy + ProxySQL on a Single OVH VPS for My Solo SaaS

TL;DR: I needed to expose MySQL on the internet without getting scanned into oblivion within 48...

#architecture#database#infrastructure#saas

1 0

Microservices vs Monolith: When to Split Your Architecture

Ugur Aslim5d ago • 4 min read

Microservices vs Monolith: When to Split Your Architecture

Decision framework for scaling full-stack apps—scaling signals, cost trade-offs, and when Astro + Fa...

#architecture#saas#scalability

0 0

I Built a 2.8KB Cookieless Analytics Tool After Google Analytics Hid 35% of My Traffic

Azaan Ali Raza1d ago • 2 min read

I Built a 2.8KB Cookieless Analytics Tool After Google Analytics Hid 35% of My Traffic

Last month my Next.js SaaS showed 1,200 visitors in Google Analytics. AmazeMatrix showed...

#ai#webdev#startup#saas

0 0

Zero-Downtime Migrations: A Step-by-Step Playbook

Digital Unicon3d ago • 6 min read

Zero-Downtime Migrations: A Step-by-Step Playbook

If you've ever typed ALTER TABLE on a production database and held your breath, this article is for....

#database#devops#postgressql#saas

0 0

How We Built an AI SaaS on the Edge for Nearly $0 in Infrastructure Costs

Theo OliveiraJun 18, 2026 • 6 min read

How We Built an AI SaaS on the Edge for Nearly $0 in Infrastructure Costs

Architecture decisions, stack choices, and trade-offs of a Brazilian SaaS running on Cloudflare Work...

#cloudflare#saas#typescript#serverless

0 0

لماذا فشلت 6 منصات نقل جامعية سعودية بعد شفلاء؟ — تحليل 2026"

سلوم الرشيد4d ago • 1 min read

لماذا فشلت 6 منصات نقل جامعية سعودية بعد شفلاء؟ — تحليل 2026"

تشريح تقني: لماذا يستغرق تكامل أنظمة الجامعات 11 شهراً وليس 3؟ عندما يبدأ فريق تقني جديد...

#api#architecture#saas#softwareengineering

0 0

Multi-Tenancy in Bun/Hono Without Boilerplate

Marc13h ago • 2 min read

Multi-Tenancy in Bun/Hono Without Boilerplate

Every multi-tenant SaaS has the same problem: you need to make sure every query only returns data fo...

#architecture#database#saas#typescript

0 0

Real User Monitoring: Measuring Web Performance in Production

sweet6d ago • 5 min read

Real User Monitoring: Measuring Web Performance in Production

Lab tests (Lighthouse, CI benchmarks) tell you how your app performs on a test machine. Real User...

#saas#analytics#performance#web

0 0

Building B2B Sales Workflows That Don't Break at Scale

SpurIQ Engineering2d ago • 7 min read

Building B2B Sales Workflows That Don't Break at Scale

The 7-stage B2B sales process from a workflow engineering perspective. What breaks at each stage....

#saas#startup#productivity#tutorial

0 0

Designing SaaS Database Architecture: Users, Organizations, Subscriptions, and Billing

sweet2d ago • 5 min read

Designing SaaS Database Architecture: Users, Organizations, Subscriptions, and Billing

SaaS database architecture decisions made in the first week will haunt you for years. This guide...

#saas#sql#postgres#ai

1 0

How I added Gemini + GPT-4 + Claude support in one settings toggle (Next.js SaaS)

Кирилл Несмелов1d ago • 2 min read

How I added Gemini + GPT-4 + Claude support in one settings toggle (Next.js SaaS)

Build log from this week: I added multi-provider AI support to Melororium — users can now switch...

#nextjs#typescript#ai#saas

1 2

I Built a Tool That Turns YouTube Videos Into Notion Pages — Here’s How

IbnH2d ago • 3 min read

I Built a Tool That Turns YouTube Videos Into Notion Pages — Here’s How

I often finish a YouTube video and realize I've already forgotten the key points. My usual fix: grab...

#webdev#nextjs#saas#buildinpublic

1 0

Building a GDPR-Compliant AI Phone Receptionist (KI-Telefonassistent) for German SMBs: Architecture Notes

Mohammed Nabeel Ahmed4d ago • 2 min read

Building a GDPR-Compliant AI Phone Receptionist (KI-Telefonassistent) for German SMBs: Architecture Notes

The problem: missed calls cost small businesses real money Dental practices, hair salons,...

#ai#saas#webdev#startup

2 0

Tech Articles