License

FLIN is free to use for personal, educational, and business purposes. Build apps, deploy to production, and grow your business — no fees, no royalties.

Free to Use

The FLIN binary — including the compiler, runtime, FlinDB embedded database, FlinUI component library (180 embedded components), 1,675 icons, file-based routing, session management, and the built-in admin console — is free to download, install, and use.

You can build applications for yourself, for your clients, and for commercial products. Applications you create with FLIN are yours — distribute them however you like.

What You Can Do

Use for any purpose — Personal projects, education, internal tools, client work, SaaS products, startups. No restrictions on your business model.
Build and ship apps — Create applications using FLIN and deploy them to production. No royalties, no fees.
Distribute your apps — Applications you build with FLIN are yours. Share, sell, or distribute them freely.

What You Cannot Do

The FLIN source code is proprietary and protected. You may not:

Copy, modify, or redistribute the FLIN source code
Reverse engineer, decompile, or disassemble the Software
Use FLIN to create a competing product or service
Remove or alter any proprietary notices or branding
Claim ownership or authorship of FLIN
Use FLIN's source code to train AI models or machine learning systems

Intellectual Property

FLIN and all related materials are the exclusive property of ZeroSuite, Inc.and Juste A. Gnimavo. The following are registered trademarks:

FLIN™
FlinDB™
FlinUI™
ZEROCORE™
"É flîn nù"
The FLIN elephant logo

Commercial Licensing

For enterprise licensing, OEM licensing, source code access, or acquisition inquiries, contact:

Email: [email protected]
Website: zerosuite.dev

Third-Party Credits

FLIN is built with the following third-party technologies and assets:

Rust — The FLIN compiler and runtime are written in Rust. Rust is dual-licensed under MIT and Apache 2.0.
Lucide Icons — The 1,675 embedded icons are from the Lucide icon set, licensed under the ISC License.
Instrument Serif — Display font by Rodrigo Fuenzalida, licensed under the SIL Open Font License.
Outfit — Body font by Rodrigo Fuenzalida, licensed under the SIL Open Font License.
JetBrains Mono — Monospace font by JetBrains, licensed under the SIL Open Font License.

No Warranty

THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT. IN NO EVENT SHALL THE OWNER BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY ARISING FROM THE USE OF THE SOFTWARE.

Full License Text

FLIN Proprietary License
Version 1.0, January 2026

Copyright (c) 2024-2026 Juste A. Gnimavo / ZeroSuite, Inc.
All Rights Reserved.

https://zerosuite.dev | https://flin.dev | [email protected]

PROPRIETARY SOFTWARE

This software and associated documentation files (the "Software") are the
exclusive property of ZeroSuite, Inc. and Juste A. Gnimavo ("Owner").

BY ACCESSING, DOWNLOADING, INSTALLING, OR USING THE SOFTWARE, YOU AGREE TO
BE BOUND BY THE TERMS OF THIS LICENSE. IF YOU DO NOT AGREE, DO NOT USE THE
SOFTWARE.

1. GRANT OF LIMITED LICENSE

Subject to the terms of this License, the Owner grants you a limited,
non-exclusive, non-transferable, revocable license to:

   a) USE the Software for personal, educational, and internal business
      purposes;

   b) CREATE applications using the Software for your own use or for your
      clients;

   c) DISTRIBUTE applications you create with the Software, provided the
      Software itself is not redistributed.

2. RESTRICTIONS

You may NOT, without prior written permission from the Owner:

   a) COPY, REPRODUCE, or DUPLICATE the Software or its source code;

   b) MODIFY, ADAPT, ALTER, TRANSLATE, or CREATE DERIVATIVE WORKS based on
      the Software;

   c) DISTRIBUTE, PUBLISH, TRANSFER, SUBLICENSE, LEASE, LEND, or RENT the
      Software or any portion thereof;

   d) SELL, RESELL, or COMMERCIALIZE the Software or any derivative works;

   e) REVERSE ENGINEER, DECOMPILE, DISASSEMBLE, or attempt to derive the
      source code of the Software;

   f) REMOVE, ALTER, or OBSCURE any proprietary notices, labels, or marks
      on the Software;

   g) USE the Software to CREATE A COMPETING PRODUCT or service;

   h) USE the Software for any ILLEGAL PURPOSE or in violation of any
      applicable laws;

   i) CLAIM OWNERSHIP or authorship of the Software or any portion thereof;

   j) USE the Software's name, logo, or branding without written permission;

   k) TRAIN AI MODELS, machine learning systems, or similar technologies
      using the Software's source code without written permission.

3. INTELLECTUAL PROPERTY

The Software, including but not limited to its source code, object code,
documentation, design, structure, selection, coordination, expression, and
arrangement, is protected by copyright, trade secret, and other intellectual
property laws.

The Owner retains all right, title, and interest in and to the Software,
including all intellectual property rights therein. This License does not
grant you any ownership interest in the Software.

The following are trademarks of ZeroSuite, Inc.:
   - FLIN™
   - FlinDB™
   - FlinUI™
   - ZEROCORE™
   - "É flîn nù"
   - The FLIN elephant logo

4. CONFIDENTIALITY

If you have access to any source code, documentation, or other confidential
materials related to the Software, you agree to:

   a) Keep such materials strictly confidential;

   b) Not disclose them to any third party;

   c) Use them only as expressly permitted by this License;

   d) Notify the Owner immediately of any unauthorized access or disclosure.

5. NO WARRANTY

THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT.

IN NO EVENT SHALL THE OWNER BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT, OR OTHERWISE, ARISING
FROM, OUT OF, OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

6. TERMINATION

This License is effective until terminated. Your rights under this License
will terminate automatically without notice if you fail to comply with any
of its terms.

Upon termination, you must:
   a) Cease all use of the Software;
   b) Destroy all copies of the Software in your possession;
   c) Certify in writing that you have complied with the above.

7. COMMERCIAL LICENSING

For commercial licensing, enterprise use, OEM licensing, or acquisition
inquiries, contact:

   Email: [email protected]
   Website: https://zerosuite.dev/contact

8. GOVERNING LAW

This License shall be governed by and construed in accordance with the laws
of the State of Delaware, United States, without regard to its conflict of
law provisions.

9. ENTIRE AGREEMENT

This License constitutes the entire agreement between you and the Owner
regarding the Software and supersedes all prior agreements and understandings,
whether written or oral.

ZeroSuite, Inc.
Delaware, United States
https://zerosuite.dev | https://flin.dev