Adopt AGPLv3 and offer matching client and service source

.changeset/agpl-home-use.md

@@ -0,0 +1,5 @@
+---
+"ftw-webapp": minor
+---
+
+Adopt AGPLv3 with a narrow Energyplan combination permission and expose source access. New Energyplan workers use separate private-household terms; commercial use and distribution require a Sourceful license. Earlier grants remain unchanged.

CONTRIBUTING.md

@@ -20,3 +20,12 @@ Follow the repository guide and coordinate overlap with open PRs.
 Sourceful reviews and maintains changes. A contribution grants no merge,
 release or deployment authority. Existing license rights and attribution
 remain unchanged. See [FTW's contribution guide](https://github.com/srcfl/ftw/blob/master/CONTRIBUTING.md).
+
+## License of contributions
+
+Contributions to this version use GNU AGPL v3 only with the Energyplan
+combination permission in [LICENSE](LICENSE), including that permission.
+Preserve third-party licenses and notices. Sign each commit with the DCO
+as described in [FTW's contribution guide](https://github.com/srcfl/ftw/blob/master/CONTRIBUTING.md).
+A sign-off does not assign copyright or grant commercial relicensing rights.
+See [LICENSING.md](LICENSING.md).

LICENSING.md

@@ -0,0 +1,64 @@
+# FTW webapp licensing
+
+This version uses GNU AGPL v3 only, with the narrow Energyplan combination
+permission in [LICENSE](LICENSE). [NOTICE](NOTICE) preserves prior Apache
+rights and attribution. Third-party files retain their own licenses.
+
+## Use and redistribution
+
+You may inspect, run, modify and sell the AGPL-covered software. When you
+convey a covered work, provide its Corresponding Source under the AGPL.
+When you modify it and let users interact with it remotely over a network,
+offer those users that version's Corresponding Source at no charge as section
+13 requires. A separate program does not become AGPL merely by sharing a
+distribution or communicating over an API; the actual combination matters.
+These paragraphs explain the license; LICENSE contains the binding terms.
+
+Sourceful Labs AB may offer separate commercial terms for rights it controls.
+Such a contract must identify the software and rights covered. It does not
+replace third-party licenses or change earlier grants. A DCO sign-off is not
+a copyright assignment or a general right to offer proprietary licenses.
+
+## Energyplan
+
+Energyplan's proprietary binaries have a separate license. The permission in
+LICENSE allows the specified combination without requiring Energyplan source;
+it does not license the binary or extend that exception to other closed code.
+The binary license bundled with the exact worker governs its use. New workers
+under the Energyplan Home Use Binary License allow private household use with
+FTW and free, noncommercial redistribution for that use. Commercial use,
+bundling, resale and services require a separate Sourceful license. Earlier
+workers keep their earlier grants. None of these restrictions apply to FTW's
+AGPL-covered code when used without those restricted binaries.
+
+## Source for a distributed version
+
+The source repository is https://github.com/srcfl/ftw-webapp.
+Use the running build's commit or release tag, not the moving default branch,
+to obtain matching source. Download an archive from that revision's Code menu,
+or clone the repository and check out the revision. Include build and install
+scripts, dependency lockfiles, license notices and any required installation
+information. FTW Core's driver pin identifies its separately supplied driver
+source and that snapshot's license; the bundled driver scripts are also source
+code. An older pinned snapshot retains its earlier license.
+
+Distributors must publish all their changes and any additional source needed
+to meet the license, keep the source available for the required period, and
+update source links to their own matching source. An upstream link alone is
+not a source offer for a modified fork or an uncommitted build. For consumer
+devices, meet AGPL section 6's Installation Information requirements where
+they apply. Publishing source does not require publishing user data, secrets
+or Energyplan source covered by the combination permission.
+
+## Relay and escrow source
+
+The official container builds include LICENSE, NOTICE and LICENSING.md. Each
+serves its exact packaged source at GET /source and advertises that path in an
+HTTP Link header. These archives are built before runtime data exists; they
+never read live state. The archive retains the original repository paths and
+includes the Dockerfile, deployment files and runtime dependency source. From
+the extracted root, build with `docker build -f relay/Dockerfile .` or
+`docker build -f escrow/Dockerfile .`. The service README and deploy/README.md
+describe the runtime and environment values.
+Non-container operators must offer their matching source too. Never replace
+this with a tar operation over a running service's data directory.

NOTICE

@@ -0,0 +1,225 @@
+FTW webapp
+Copyright 2026 Sourceful Labs AB and contributors.
+
+License transition: 2026-09-12
+------------------------------
+This version changes the license of the project as a whole to GNU AGPL v3
+only with the Energyplan combination permission in LICENSE. It does not
+withdraw any rights already granted for earlier copies or their code.
+The Apache-licensed default-branch snapshot used for this transition was:
+https://github.com/srcfl/ftw-webapp/tree/1ae2390b7bea4986d01500c90c33a914833b3801
+
+That snapshot was offered under Apache-2.0. Its copyright holders keep their
+copyrights and the permissions they previously granted remain available.
+The following prior notices and Apache license apply to that material.
+They do not offer later changes under Apache-2.0. Git history records authors,
+changes and dates. Separately licensed third-party files keep their notices.
+
+
+
+Prior Apache license, retained verbatim
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README.md

@@ -111,4 +111,6 @@ fails if the two drift. Do not hand-write those names in either language.
 
 ## Licence
 
-Apache-2.0. See [LICENSE](LICENSE).
+AGPL-3.0-only with the Energyplan combination permission. See
+[LICENSE](LICENSE), [LICENSING.md](LICENSING.md) and [NOTICE](NOTICE).
+Earlier Apache-licensed versions retain their earlier grants.

escrow/Dockerfile

@@ -20,6 +20,17 @@ WORKDIR /srv/escrow
 # in the image that could learn anything.
 COPY escrow/src ./src
 COPY escrow/layout.md ./layout.md
+COPY LICENSE NOTICE LICENSING.md ./
+COPY escrow/Dockerfile escrow/README.md ./
+# Keep the original build paths so the downloaded source can build this image.
+COPY LICENSE NOTICE LICENSING.md /usr/share/ftw/source/
+COPY escrow/src /usr/share/ftw/source/escrow/src
+COPY escrow/Dockerfile escrow/README.md /usr/share/ftw/source/escrow/
+COPY escrow/deploy /usr/share/ftw/source/escrow/deploy
+COPY escrow/layout.md /usr/share/ftw/source/escrow/
+# Runtime state does not exist yet and is never added to this archive.
+RUN tar -czf /usr/share/ftw/source.tar.gz -C /usr/share/ftw/source . \
+    && rm -rf /usr/share/ftw/source
 
 # The file lives on a volume so a rebuild does not take a household's copy with
 # it. Owned by the unprivileged user the process runs as. It is made once, at

escrow/README.md

@@ -618,3 +618,12 @@ instead of rediscovering it.
 - **Growing the file needs the service stopped.** It is a few seconds for a file
   of this size and it is a decision an operator makes, so it has no locking and
   no online path. `src/grow.ts` says what it reveals.
+
+## License and source
+
+This service uses AGPL-3.0-only with the Energyplan combination permission.
+See [LICENSE](../LICENSE), [LICENSING.md](../LICENSING.md) and
+[NOTICE](../NOTICE). Commercial use is allowed under those terms.
+The container serves its matching build source at `/source`. Keep that offer
+available to network users and include your changes when hosting a modified
+version. The archive contains build-time source, not runtime household data.