Adopt AGPLv3 and retain earlier driver license grants

.github/workflows/ftw-drivers-release.yml

@@ -178,6 +178,12 @@ jobs:
           set -euo pipefail
           artifacts=("${FTW_DRIVER_CANDIDATE_DIR}"/driver-*.lua)
           test -e "${artifacts[0]}"
+          # Keep notices immutable alongside artifacts from this source commit.
+          # Earlier files in the rolling channel retain their earlier licenses.
+          for notice in LICENSE NOTICE LICENSING.md THIRD_PARTY_NOTICES.md; do
+            cp "${notice}" "${FTW_DRIVER_CANDIDATE_DIR}/${notice}-${GITHUB_SHA}.txt"
+            artifacts+=("${FTW_DRIVER_CANDIDATE_DIR}/${notice}-${GITHUB_SHA}.txt")
+          done
           existing="$(gh release view "${TAG}" --repo "${GITHUB_REPOSITORY}" --json assets --jq '.assets[].name')"
           for artifact in "${artifacts[@]}"; do
             name="$(basename "${artifact}")"

CONTRIBUTING.md

@@ -22,15 +22,18 @@ Sourceful reviews and maintains changes under the existing license.
 
 ## Legal sign-off
 
-Contributions use Apache-2.0 and the Developer Certificate of Origin 1.1. Sign
-every commit with your real name and email:
+Contributions to this version use GNU AGPL v3 only with the Energyplan
+combination permission in LICENSE, including that permission. Preserve
+third-party licenses and notices. Use the Developer Certificate of Origin
+1.1 and sign every commit with your real name and email:
 
 ```bash
 git commit -s -m "feat(driver): add example meter"
 ```
 
 The sign-off confirms that you wrote the contribution or have the right to
-submit it under this license.
+submit it under these terms. A sign-off does not assign copyright or grant
+commercial relicensing rights. See [LICENSING.md](LICENSING.md).
 
 ## Start a driver
 

LICENSING.md

@@ -0,0 +1,51 @@
+# Sourceful Device Drivers 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/device-drivers.
+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.

NOTICE

@@ -0,0 +1,224 @@
+Sourceful Device Drivers
+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/device-drivers/tree/91f49bd869300e4985979823971787d9cc6eb883
+
+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

@@ -149,5 +149,6 @@ target identities from [support-status.json](support-status.json).
 
 ## License
 
-Sourceful-authored code is licensed under Apache-2.0. Vendored Lua 5.5 source
+This version uses AGPL-3.0-only with the Energyplan combination permission
+in [LICENSE](LICENSE). See [LICENSING.md](LICENSING.md) and [NOTICE](NOTICE). Vendored Lua 5.5 source
 keeps its own MIT notice; see [THIRD_PARTY_NOTICES.md](THIRD_PARTY_NOTICES.md).

tools/generate_site.py

@@ -964,7 +964,7 @@ def render_html(catalog: dict) -> str:
 <main id="content">
 <section class="hero" id="top">
   <div class="wrap">
-    <p class="kicker"><span class="dot" aria-hidden="true"></span>Apache-2.0 &middot; One driver per device &middot; Built from the repository</p>
+    <p class="kicker"><span class="dot" aria-hidden="true"></span>AGPL-3.0-only &middot; One driver per device &middot; Built from the repository</p>
     <h1>Every driver, and what <em>stands behind it.</em></h1>
     <p class="lede">These are the Lua drivers Sourceful publishes for FTW and Blixt L1 — solar inverters,
     batteries, meters, heat pumps and EV charging. Each entry is generated from the manifest and the driver
@@ -1055,7 +1055,7 @@ def render_html(catalog: dict) -> str:
     </div>
   </div>
   <div class="wrap footer-bottom">
-    <span>&copy; Sourceful Labs AB and contributors &middot; Apache-2.0</span>
+    <span>&copy; Sourceful Labs AB and contributors &middot; AGPL-3.0-only</span>
     <span>Generated from {commit_line or "the repository"} &middot;
       <a href="./drivers.json">drivers.json</a></span>
   </div>