Relicense under AGPL-3.0-or-later

The same licence as ihasmail, which this tool deploys. The network clause
is the part that matters for a deploy tool: a modified copy offered as a
hosted service that deploys for other people has to make its source
available to them, which GPL would not require. Running the tool for your
own host is unaffected.

v2026.9.13 was released under GPL-3.0-or-later and stays so; this applies
from the next release.

internal/config/config.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 // Package config turns the command line into a Plan: every name, address and
 // image the deployment uses, validated once, before anything touches Docker.

internal/config/config_test.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 package config
 

internal/deploy/deploy.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 // Package deploy is the one shot: preflight, write the directory, bootstrap
 // Stalwart, bring the stack up, link and verify it.

internal/docker/docker.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 // Package docker drives the docker CLI. The CLI rather than the Engine API,
 // because compose is the thing being driven and the CLI is how it ships: the

internal/render/render.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 // Package render writes the deployment directory: compose.yaml, the Caddyfile,
 // and the files holding secrets.

internal/render/render_test.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 package render
 

internal/stalwart/client.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 // Package stalwart configures a fresh Stalwart 0.16 over JMAP.
 //

internal/stalwart/client_test.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 package stalwart
 

internal/stalwart/setup.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 package stalwart
 

internal/webmail/webmail.go

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2026 Coffey Labs
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 // Package webmail checks a running ihasmail from the outside, the way a
 // browser would reach it.