The diary of an open-source startup

Latest news and insights – everything you need to know about billing, open-source software and startups.

We raised $22 million to build an open-source alternative to traditional payments & billing platforms

Product & Billing

Why is calculating Stripe MRR so difficult?

Product & Billing

Why Billing Engineers in Fintechs should be paid more

Product & Billing

8 things to consider when choosing your billing system

Product & Billing

ORMs are criticized for the wrong reasons

Product & Billing

Time Zone Nightmares: Navigating the Chaotic World of Global Product Development and Billing

Product & Billing

Introducing the feature Fintechs were asking for

Product & Billing

Grace period to adjust invoice usage

Product & Billing

Bill your customers in their timezone, not yours

Product & Billing

How we ship fast: our framework

Product & Billing

5 essential billing features for BaaS companies

Product & Billing

Which pricing model should you choose?

Product & Billing

Clone Slack's fair per-seat pricing in a simple way

Product & Billing

The 4 biggest problems with homemade billing systems

Product & Billing

6 steps to build a usage-based billing system

Product & Billing

Does Stripe use Stripe Billing to bill its customers?

Product & Billing

Why billing is not just 'Build' or 'Buy'

Product & Billing

Why Heroku-like pricing models are hard to build

Product & Billing

The tech stack we use to build Lago

Product & Billing

Generating PDF invoices using Lago

Product & Billing

We crunched the fees of Stripe's 21 products

Product & Billing

Engineers need open source to end their billing nightmares

Product & Billing

How we think about our own pricing

Product & Billing

Open-source licensing and why Lago chose AGPLv3

Product & Billing

The 5 reasons why we chose open source

Product & Billing

Why B2B billing is hard

Product & Billing

😵‍💫 Why billing systems are a nightmare for engineers

Product & Billing

Pricing, my only growth hack at Qonto