







Sentry started life in 2008 as an unlicensed, 71-line Django plugin. The next year we began publishing it under BSD-3, and ten years later we switched to the Business Source License (BSL or BUSL). Last year we purchased Codecov, and a few months ago we published it under BSL/BUSL as well. That led to some vigorous debate because of our use of the term “Open Source” to describe Codecov, from which emerged this helpful suggestion from Adam Jacob, co-founder of Chef:
Some startups are going ‘fair source’ to avoid the pitfalls of open source licensing | TechCrunch
New alternative category to 'closed source' could help companies monetize software in the open -- without going all-in on open source.

Licenses – Open Source Initiative
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Sorting out the Ethical Licensing Mess
Software developers who give the world, for free, usage rights to the code they write often use open source licenses to make this gift legally explicit. These free usage rights (and then some) are …

Business Source License 1.1 | MariaDB
Details of MariaDB’s Business Source License (BSL) 1.1.

Open Source Beyond Licensing - The Evolution Ahead
Boris Mann's digital garden and personal site.
MariaDB Business Source License (BSL) | MariaDB
This FAQ addresses questions for MariaDB customers and users interested in why MariaDB is employing the Business Source License (BSL).

The Open Source Distributor Business Model
Dirk Riehle, dirk@riehle.org, Published in Computer vol. 54, no. 12 (December 2021), pp. 99-103. Abstract This article defines and discusses one particular commercial open source business model, ca…

Open sourcing our server
We take the final step in our open source journey. Our clients had always been open source. Today, we are also releasing the source code for our servers.

Adopting and Developing BSL Software | MariaDB
This FAQ addresses questions for developers & companies interested in working on Business Source License (BSL) software or adopting BSL for their own business.


Business Source License 1.1
HashiCorp helps organizations automate hybrid cloud environments with a unified approach to Infrastructure and Security Lifecycle Management.

It’s time to rethink Open Source
Why developers give away valuable work for free — and what can be done to take that money back.

Paying people to work on open source is good actually - Jacob Kaplan-Moss
If you have a problem with maintainers getting paid then you have a problem with me and I suggest you let that one marinate.

Contributor Covenant | Contributor Covenant 3
The most widely adopted code of conduct in open source. Stewarded by the Organization for Ethical Source.

Introducing Sponsorware: How A Small Open Source Package Increased My Salary By $11k in Two Days
<p>After digging deep on SQLite during a pair programming session with a client/friend, I had an idea…</p> <p>About 45 minutes later, a proo...
