Typelevel

Open source

Open Source, functional, modular and friendly Scala libraries.

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Become a financial contributor.

Custom contribution

Donation

Make a custom one-time or recurring contribution.

Contributions by


+ 36
Recurring contribution

Backer

Become a backer for $5.00 per month and support us

Starts at

$5 USD / month

Contributions by


+ 15
Membership

Silver Sponsor

Have your logo listed as Silver Sponsor on our website

Starts at

$180 USD / month

Contributions by


Membership

Gold Sponsor

Have your logo listed as Gold Sponsor on our website.

Starts at

$420 USD / month

Membership

Platinum Sposor

Have your logo listed as Platinum Sponsor on our website.

Starts at

$950 USD / month

Top financial contributors

Individuals

1
Pere Villega

$4k USD since Nov 2019

2
Chris Hodapp

$3k USD since Dec 2019

3
Incognito

$3k USD since Dec 2019

4
Ryan Williams

$340 USD since Nov 2019

5
Robert Cheetham

$325 USD since Apr 2021

6
David Gregory

$300 USD since Dec 2019

7
Peter Perhac

$185 USD since Nov 2019

8
Olli Helenius

$180 USD since Nov 2019

9
Luis Miguel Mejía-Suárez

$180 USD since Nov 2019

10
Vasiliy Lukoyanov

$170 USD since Nov 2019

11
Bogdan Roman

$170 USD since Nov 2019

12
Albert Bikeev

$105 USD since Nov 2019

13
Ahmad Ragab

$90 USD since Nov 2019

14
Justin du Coeur

$85 USD since Nov 2019

15
Matt Hicks

$75 USD since Jan 2020

Organizations

1
Typelevel

$12k USD since Sep 2020

2
Adjust GmbH

$2k USD since Aug 2020

3
commercetools GmbH

$500 USD since Apr 2021

4
Triplebyte

$175 USD since Jan 2020

5
The Guardian

$100 USD since Mar 2021

Typelevel is all of us

Our contributors 43

Thank you for supporting Typelevel.

Kailuo Wang

Core Contributor

Typelevel

Financial Contributor

Total contributions

$11,791 USD

Pere Villega

Financial Contributor

Total contributions

$3,600 USD

As a developer I benefit so much from the Typelevel ecosystem that supporting it is a no-brainer.

Chris Hodapp

Financial Contributor

Total contributions

$3,000 USD

Silver Sponsor

Donorbox (car...

Financial Contributor

Total contributions

$2,912 USD

Adjust GmbH

Financial Contributor

Total contributions

$1,620 USD

Silver Sponsor

commercetools...

Financial Contributor

Total contributions

$500 USD

Ryan Williams

Financial Contributor

Total contributions

$340 USD

backer

Robert Cheetham

Financial Contributor

Total contributions

$325 USD

David Gregory

Financial Contributor

Total contributions

$300 USD

backer

Budget


Transparent and open finances.

Financial contribution to Typelevel

from Robert Cheetham

+$325.00USD
Completed

Financial contribution to Typelevel

from commercetools GmbH

+$500.00USD
Completed

Monthly financial contribution to Typelevel (backer)

from Peter Perhac

+$10.00USD
Completed
$
Today’s balance

$23,099.08 USD

Total raised

$23,326.16 USD

Total disbursed

$227.08 USD

Estimated annual budget

$18,598.29 USD

About


Thank you for visiting the Typelevel sustainability program.
The ultimate goal for this program is to provide ways for the user community to ensure the long-term sustainability of the development and maintenance of some Typelevel libraries.

Based on the Cats ecosystem community survey 2018 results, as well as feedback from potential donors, we adopted the following principles for the program:

Principles:


* Paid maintainers focus on supporting the community contributors. In another sentence, paid maintainers’ first task is to maintain the community-driven development.
More detailed responsibilities are listed below.
* Main obligations to sponsors (individual or corporate) are limited to 
  - The existing license remains unchanged.
  - Timely security patches and mission-critical bug fixes.
  - Financial contributions will NOT grant contributors extra influence over the development.
  - Financial contributors can influence how their contribution is distributed among projects.
* The program is governed by an independent committee.
* As part of our community, sponsors hold values compatible with the Scala Code of Conduct.

Responsibilities for paid maintainers 

Based on these principles, we established the following three main goals and relevant tasks for paid maintainers. 

Goal 1: Provide guidance for community contributors

Relevant tasks:  

* Create/maintain contribution guidance documentation
* Review PRs in a timely fashion
* Create friendly issues for first-time contributors
* Provide real-time tech support for contribution related topics

Goal 2: Relieve community contributors from most fastidious, ingrate tasks

Relevant tasks: 

* Maintain/improve infrastructure, e.g. build, tests, linting etc.
* Plan and manage releases
* Backports to support of old Scala version
* Create documentation

Goal 3: Ensure the ecosystem is unblocked

Relevant Tasks: 

* Fix mission-critical bug 
* Address security vulnerabilities
* Enforce compatibility guarantees
* Take on initiatives that require a significant amount of effort usually too large for casual contributors to 
take on, e.g. complete Scala 2.13 migration; merging in typelevel/algebra; integration with Scala 3.0 std library, etc.

Funding source


We rely on donations from corporation and individual users of the OSS libraries. Aside from monetary assistance, companies can support us by:

* Providing computing resources/tools such as CI systems, communication platforms, development tools, etc.
* Paid employees' time for code contributions
* Sponsor events such as free training, conferences, by providing the venue, food, etc.
* Donation of training/support services or coupons that we can then exchange for monetary contributions.  

Perks for sponsoring companies include

* Branding on our sponsors' list (at $200 per month or 100 paid employee hours per year)
* Job posts (at $500/month level)
* Training / Technical support (if we receive such donations)

We reserve the right to respectfully decline sponsorship offers. 


Typelevel libraries in the program

1. Cats and its external modules projects including
   * cats-effect
   * cats-mtl
   * mouse
   * kittens
   * cats-tagless
   * Cats-collections
2. Shapeless
3. Spire

We are in the process of enlisting more Typelevel libraries into the program based on their maintainers’ as well as sponsors’ interests.

Please don't hesitate to reach out with questions. Our contact Email is [email protected] 

Thank you for reading this and considering supporting us.

Our team

Kailuo Wang

Core Contributor