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Lambda Island Open Source

COLLECTIVE
opencollectiveeu
europe
Collective
clojure
Open source
Fiscal Host: Open Collective Europe

Creating open source for the Clojure ecosystem

This is Lambda Island Open Source's pageLambda Island Open Source
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About

Contribute

Become a financial contributor.

Financial Contributions

Membership
Hobbyist

I use Lambda Island projects in my spare time, and I want to support future development.

Starts at
€2 EUR / month

Latest activity by

+ 4
Membership
Bootstrapper

I use Lambda Island projects in small projects in production, and I want to support future development.

Starts at
€8 EUR / month

Latest activity by

+ 6
Membership
Kaocha Yearly License

A license for unlimited installations of the Kaocha Testing Suite. - lambdaisland/kaocha - lambdaisland/kaocha-cljs - lambdaisland/kaocha-cloverag... Read more

€199 EUR / year

Latest activity by

Membership
Startup sponsor

We rely on Lambda Island projects to ship our product, and we want to support future development.

Starts at
€128 EUR / month

Latest activity by

Membership
Enterprise sponsor

We benefit from Lambda Island projects across products and projects, and we want to support future development

Starts at
€512 EUR / month

Latest activity by

Custom contribution
Donation
Make a custom one-time or recurring contribution.

Latest activity by

+ 23

Top financial contributors

Individuals

1
Nubank

€21,504 EUR since Jan 2022

2
Amar Mehta

€734 EUR since Feb 2020

3
Marc Sabates Gelpi

€600 EUR since May 2020

4
Robert Stuttaford

€570 EUR since Feb 2020

5
Gene Kim

€512 EUR since Feb 2020

6
Art Semyonov

€336 EUR since Feb 2020

7
Erich Oliphant

€336 EUR since Mar 2020

8
Martin Klepsch

€320 EUR since Feb 2020

9
Zane

€315 EUR since May 2020

10
Terje Sten Bjerkseth

€244 EUR since Nov 2022

11
Pedro Girardi

€176 EUR since Feb 2020

12
Juraj Martinka

€176 EUR since Apr 2022

13
Dan Dorman

€132 EUR since Feb 2020

14
Yannick Scherer

€108 EUR since Dec 2020

15
Marc Jeanson

€104 EUR since Mar 2020

Organizations

1
Nextjournal

€8,448 EUR since Feb 2020

2
SAP Concur

€199 EUR since Aug 2021

Lambda Island Open Source is all of us

Our contributors 31

Thank you for supporting Lambda Island Open Source.

Arne Brasseur

Admin

Mitesh Shah

Admin

Alys Brooks

Admin

Bettina

Admin

Nubank

enterprise sponsor

€21,504 EUR

Nextjournal

startup sponsor

€8,448 EUR

Amar Mehta

bootstrapper

€734 EUR

Kaocha is amazing. Thanks!

Marc Sabates ...

€600 EUR

Robert Stutta...

bootstrapper

€570 EUR

An easy decision. Arne contributes so much of v...

Gene Kim

enterprise sponsor

€512 EUR

Art Semyonov

bootstrapper

€336 EUR

Erich Oliphant

bootstrapper

€336 EUR

Budget

Transparent and open finances.

Monthly financial contribution to Lambda Island Open Sour...

Credit from Terje Sten Bjerkseth to Lambda Island Open Source •

+€2.00EUR
Completed
Contribution #592056
Monthly financial contribution to Lambda Island Open Sour...

Credit from Nubank to Lambda Island Open Source •

+€512.00EUR
Completed
Contribution #515726
Monthly financial contribution to Lambda Island Open Sour...

Credit from Zane to Lambda Island Open Source •

+€5.00EUR
Completed
Contribution #76137
€
Today’s balance

€22,998.69 EUR

Total raised

€31,533.49 EUR

Total disbursed

€8,534.80 EUR

Estimated annual budget

€8,054.00 EUR

Connect

Let’s get the ball rolling!

News from Lambda Island Open Source

Updates on our activities and progress.

Get your Lambda Island stickers

Contribute to Lambda Island Open Source to see this Update
Published on March 11, 2021 by Arne Brasseur

Happy to support Alys

Today was the first time since starting this Open Collective last year that we paid out some of our balance to a contributor. Alys Brooks has been hard at work for several months already helping to improve the Lambda Island Open Source proj...
Read more
Published on February 8, 2021 by Arne Brasseur

[Contributor Exclusive] Lambda Island - Behind the Scenes!

Contribute to Lambda Island Open Source to see this Update
Published on December 14, 2020 by Mitesh Shah

Conversations

Let’s get the discussion going! This is a space for the community to converse, ask questions, say thank you, and get things done together.

Interested in a Ask Me Anything with Arne Brasseur?

Published on June 24, 2025 by Bettina

Dear Lambda Island fans, Thank you so much for being our loyal and true fans by backing Lambda Island on Open Collective! While we don’t do open source for the money, it sure is gratifying to have backers recognize our open source work’s va...

About

Lambda Island creates and maintains several popular Clojure libraries and tools: Kaocha, deep-diff, uri, Glögi, metabase-datomic, ansi, hillchart. We also maintain some of the community infrastructure, namely the ClojureVerse forum, and the clojurians-log slack log.

You can read all about this Collective and how we plan to use in our announcement post.

Contact: [email protected]

Our team

Arne Brasseur

Admin

Mitesh Shah

Admin

Alys Brooks

Admin

Bettina

Admin