License¶

FitRadarHR is distributed under the Functional Source License, version 1.1, MIT Future License (FSL-1.1-MIT), a Fair Source license — source-available code, but not "open source" in the strict OSI sense (see below why).

License change — 2026-07-03

FitRadarHR was originally distributed under the MIT license. It moved to FSL-1.1-MIT to protect a possible future commercial offering (free plan then subscription) against a third party reusing the code, while keeping the code public and modifiable for internal, educational or research use.

What this means in practice¶

✅ You can view, clone and study the code freely ✅ You can use and modify it for your own internal use (your company, your organization) ✅ You can use it for non-commercial research or education ✅ You can use it as part of a professional service for a client who themselves uses it under these same conditions ✅ Two years after its publication, each version automatically reverts to the MIT license — with no action required on your part

❌ You cannot, without authorization, use it to offer third parties a commercial product or service that competes with FitRadarHR — that is, one that substitutes for it, competes with an offering we already provide, or offers substantially similar functionality

The only constraint on permitted uses: keep the copyright notice and a link to the license in redistributed copies.

In summary: self-hosting FitRadarHR for your HR team or your teams remains entirely free and unrestricted. What is reserved is turning it into a competing commercial product or service without our agreement.

Why it's no longer "open source" in the strict sense¶

The official definition of open source (Open Source Initiative) prohibits any restriction on commercial use. A license that reserves one use — even just competing commercial use — is therefore no longer "open source" in the OSI sense, even though the code remains public and readable. That's why we say "Fair Source" rather than "open source": the code is open, but usage is not entirely unrestricted. Other well-known projects use this same model: Sentry, HashiCorp (before its acquisition), CockroachDB.

Full license text¶

Functional Source License, Version 1.1, MIT Future License (FSL-1.1-MIT)

Copyright 2026 Damien Ruiz

## Terms and Conditions

### Licensor ("We")
The party offering the Software under these Terms and Conditions.

### The Software
The "Software" is each version of the software that we make available under
these Terms and Conditions, as indicated by our inclusion of these Terms and
Conditions with the Software.

### License Grant
Subject to your compliance with this License Grant and the Patents,
Redistribution and Trademark clauses below, we hereby grant you the right to
use, copy, modify, create derivative works, publicly perform, publicly display
and redistribute the Software for any Permitted Purpose identified below.

### Permitted Purpose
A Permitted Purpose is any purpose other than a Competing Use. A Competing Use
means making the Software available to others in a commercial product or
service that: (1) substitutes for the Software; (2) substitutes for any other
product or service we offer using the Software that exists as of the date we
make the Software available; or (3) offers the same or substantially similar
functionality as the Software.

Permitted Purposes specifically include using the Software: (1) for your
internal use and access; (2) for non-commercial education; (3) for
non-commercial research; and (4) in connection with professional services
that you provide to a licensee using the Software in accordance with these
Terms and Conditions.

### Patents
To the extent your use for a Permitted Purpose would necessarily infringe our
patents, the license grant above includes a license under our patents. If you
make a claim against any party that the Software infringes or contributes to
the infringement of any patent, then your patent license to the Software ends
immediately.

### Redistribution
The Terms and Conditions apply to all copies, modifications and derivatives
of the Software. If you redistribute any copies, modifications or derivatives
of the Software, you must include a copy of or a link to these Terms and
Conditions and not remove any copyright notices provided in or with the
Software.

### Disclaimer
THE SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR
IMPLIED. IN NO EVENT WILL WE HAVE ANY LIABILITY TO YOU ARISING OUT OF OR
RELATED TO THE SOFTWARE, INCLUDING INDIRECT, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES, EVEN IF WE HAVE BEEN INFORMED OF THEIR POSSIBILITY IN
ADVANCE.

### Trademarks
Except for displaying the License Details and identifying us as the origin of
the Software, you have no right under these Terms and Conditions to use our
trademarks, trade names, service marks or product names.

## Grant of Future License
We hereby irrevocably grant you an additional license to use the Software
under the MIT license that is effective on the second anniversary of the date
we make the Software available. On or after that date, you may use the
Software under the standard MIT license terms.

Authoritative reference text: LICENSE at the root of the repository.

Contributing¶

Contributions remain welcome on GitHub — they are subject to the same license terms.

IPIP questionnaire¶

The Big Five questionnaire used (IPIP) is in the public domain, developed by Lewis Goldberg. See ipip.ori.org. This license only concerns FitRadarHR's code, not the questionnaire itself.