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The Usufruct License (UFL) — Version 2.2
Canonical text, whitepaper, and FAQ: https://github.com/estejosh/UFL-Usufruct-License

Copyright (c) 2026 Joshua D. Hale

Operational Scope: Seat-Limited — 2 seats, 2 computers, 2 mobile devices free in production

## 1. Grant of Use

Subject to the terms below and the Operational Scope declared above,
the Licensor grants anyone the free, perpetual, worldwide right to use
the Software — in source or compiled form, at any scale — without
payment or a separate license beyond what Section 1A requires. This
includes running the Software, deploying it, integrating with it
through its published interfaces, and operating a product or service
built on top of it, as scoped by Section 1A.

## 1A. Operational Scope

The Operational Scope declared above states the only limit, if any, on
Section 1's grant. Exactly one scope applies to this Software:

Seat-Limited — Section 1's grant is unconditional for non-production
use. Production use is free up to 2 seats, 2 computers, 2 mobile devices; production use beyond
that threshold requires a paid, separate written license from the
Licensor.

## 2. Reserved Rights

The following rights are reserved to the Licensor and are NOT granted by
Section 1. They require a separate written license from the Licensor,
except as Section 2A permits:

  (a) Distributing the Software, or any modified version, fork, or
      substantially similar reimplementation of it, to any third party,
      in source or compiled form.
  (b) Incorporating the Software's source code into another product or
      service that is distributed, sold, or otherwise made available to
      third parties.
  (c) Using the Licensor's name, marks, or claims of compatibility
      ("Ferryman-compatible," "built on Ferryman," etc.) in
      connection with a distributed derivative.

## 2A. Forks of Decentralized or Network Software

If the Software is designed to run as a node, client, or peer in a
decentralized network, blockchain, or similar peer-to-peer protocol,
Section 2(a) does not require a separate license for distributing a
modified version, fork, or independent reimplementation of it —
including to operate a competing network — provided the distributed
work:

  (i) prominently and accurately credits Ferryman as the origin
      of the Software or protocol, in its README, whitepaper, or
      equivalent primary documentation; and
  (ii) keeps the canonical-source notice required by Section 7 intact.

Distributing a fork that removes, obscures, or falsifies this
attribution is not permitted under this exception and still requires a
separate license under Section 2(a). This section does not affect
Sections 2(b) or 2(c): incorporating the Software into another
distributed product, and using the Licensor's name or marks to claim
compatibility, still require a separate license regardless of
attribution.

## 2B. Reproducing This License Text

The text of this license — this document itself, independent of any
particular copy's Operational Scope, copyright holder, or project name —
may be freely copied and reproduced by anyone to license their own
software, including verbatim reproduction in a project's own LICENSE
file. This permission is not limited by Section 2(a) and applies
regardless of Operational Scope: licensing your own software under this
text is not "distributing the Software" of any other project that also
uses it, and requires no separate permission from any Licensor who has
used it. This section grants no right to any particular Licensor's
Software — only to the legal text of this license itself.

## 2C. Version Fidelity

The permission granted by Section 2B is a permission to reproduce, not
to modify. A copy of this text is adopted as-is: the only blanks a
Licensor may fill in are the copyright year, the copyright holder, and
the project name given near the top of this text, and the only choice
a Licensor may make is which single Operational Scope in Section 1A
applies, stated exactly as the canonical text provides for that scope.
Beyond those fills, no wording in Sections 1 through 7 of this
license, including this section, may be added to, removed, or altered
in any copy that is presented, cited, or identified as "the Usufruct
License," "UFL," or by any `LicenseRef-UFL-*` identifier. A project
that needs different terms is free to write its own license, including
one derived from this text under its own name — it is not free to
alter this text and continue to call the result UFL.

Anyone may propose a change for a future version at the canonical
source named in Section 7. An adopted proposal becomes a new official
version, never a retroactive edit: once a version of this license is
published, its text is not changed, and a project that wants a later
version's provisions adopts that version's text in full.

## 3. Why "Usufruct"

In civil law, a usufruct is the right to use property belonging to
another and enjoy its benefits, without the right to alter its substance
or transfer ownership to someone else. This license grants exactly that:
full use, no transfer.

## 4. Contributions

Contributions submitted to a Software repository under this license are
accepted under these same terms and are granted back to the Licensor to
the extent necessary to keep this license enforceable across the
combined work.

## 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 LICENSOR BE LIABLE FOR ANY CLAIM, DAMAGES, OR
OTHER LIABILITY ARISING FROM THE SOFTWARE OR THE USE OR OTHER DEALINGS
IN THE SOFTWARE.

## 6. Note on Classification

This is a source-available license, not an OSI-approved open source
license. The Open Source Definition requires unrestricted redistribution
rights, which Section 2 intentionally withholds regardless of
Operational Scope. Some Operational Scopes under Section 1A also
withhold uses the Open Source Definition requires to be unrestricted.
The source is public; which uses are free depends on the Operational
Scope declared above.

## 7. Notice

The canonical-source line at the top of this license text (or an
equivalent pointer to https://github.com/estejosh/UFL-Usufruct-License)
must be kept intact when this license text is copied into another
project. This is a notice requirement on the license text itself, not
an additional condition on using the Software beyond Section 1A.

---
SPDX identifier: UFL is not on the official SPDX license list. Per SPDX
convention for licenses outside that list, use `LicenseRef-UFL-2.2-S` —
not a bare `UFL-2.2-S`, which would misrepresent it as SPDX-registered.