diff --git a/.gitignore b/.gitignore
index dfc1a4d59be6d9140899ede57eae337d4d0cf718..90163e504c11ce608eaaf8f88f61357bb51e56d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,5 @@
+# SPDX-FileCopyrightText: 2012-2017 Bruce Cowan <bruce@bcowan.me.uk>
+#
+# SPDX-License-Identifier: CC0-1.0
+
 .flatpak*
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6a294f48556149aa32ceba540266d645027db619..617fd07a40b3bd4e1ce334d894da41e0ad07d415 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2018 Bruce Cowan <bruce@bcowan.me.uk>
+#
+# SPDX-License-Identifier: CC0-1.0
+
 stages:
   - build
 
diff --git a/COPYING b/COPYING
deleted file mode 100644
index 65c5ca88a67c30becee01c5a8816d964b03862f9..0000000000000000000000000000000000000000
--- a/COPYING
+++ /dev/null
@@ -1,165 +0,0 @@
-                   GNU LESSER GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-
-  This version of the GNU Lesser General Public License incorporates
-the terms and conditions of version 3 of the GNU General Public
-License, supplemented by the additional permissions listed below.
-
-  0. Additional Definitions.
-
-  As used herein, "this License" refers to version 3 of the GNU Lesser
-General Public License, and the "GNU GPL" refers to version 3 of the GNU
-General Public License.
-
-  "The Library" refers to a covered work governed by this License,
-other than an Application or a Combined Work as defined below.
-
-  An "Application" is any work that makes use of an interface provided
-by the Library, but which is not otherwise based on the Library.
-Defining a subclass of a class defined by the Library is deemed a mode
-of using an interface provided by the Library.
-
-  A "Combined Work" is a work produced by combining or linking an
-Application with the Library.  The particular version of the Library
-with which the Combined Work was made is also called the "Linked
-Version".
-
-  The "Minimal Corresponding Source" for a Combined Work means the
-Corresponding Source for the Combined Work, excluding any source code
-for portions of the Combined Work that, considered in isolation, are
-based on the Application, and not on the Linked Version.
-
-  The "Corresponding Application Code" for a Combined Work means the
-object code and/or source code for the Application, including any data
-and utility programs needed for reproducing the Combined Work from the
-Application, but excluding the System Libraries of the Combined Work.
-
-  1. Exception to Section 3 of the GNU GPL.
-
-  You may convey a covered work under sections 3 and 4 of this License
-without being bound by section 3 of the GNU GPL.
-
-  2. Conveying Modified Versions.
-
-  If you modify a copy of the Library, and, in your modifications, a
-facility refers to a function or data to be supplied by an Application
-that uses the facility (other than as an argument passed when the
-facility is invoked), then you may convey a copy of the modified
-version:
-
-   a) under this License, provided that you make a good faith effort to
-   ensure that, in the event an Application does not supply the
-   function or data, the facility still operates, and performs
-   whatever part of its purpose remains meaningful, or
-
-   b) under the GNU GPL, with none of the additional permissions of
-   this License applicable to that copy.
-
-  3. Object Code Incorporating Material from Library Header Files.
-
-  The object code form of an Application may incorporate material from
-a header file that is part of the Library.  You may convey such object
-code under terms of your choice, provided that, if the incorporated
-material is not limited to numerical parameters, data structure
-layouts and accessors, or small macros, inline functions and templates
-(ten or fewer lines in length), you do both of the following:
-
-   a) Give prominent notice with each copy of the object code that the
-   Library is used in it and that the Library and its use are
-   covered by this License.
-
-   b) Accompany the object code with a copy of the GNU GPL and this license
-   document.
-
-  4. Combined Works.
-
-  You may convey a Combined Work under terms of your choice that,
-taken together, effectively do not restrict modification of the
-portions of the Library contained in the Combined Work and reverse
-engineering for debugging such modifications, if you also do each of
-the following:
-
-   a) Give prominent notice with each copy of the Combined Work that
-   the Library is used in it and that the Library and its use are
-   covered by this License.
-
-   b) Accompany the Combined Work with a copy of the GNU GPL and this license
-   document.
-
-   c) For a Combined Work that displays copyright notices during
-   execution, include the copyright notice for the Library among
-   these notices, as well as a reference directing the user to the
-   copies of the GNU GPL and this license document.
-
-   d) Do one of the following:
-
-       0) Convey the Minimal Corresponding Source under the terms of this
-       License, and the Corresponding Application Code in a form
-       suitable for, and under terms that permit, the user to
-       recombine or relink the Application with a modified version of
-       the Linked Version to produce a modified Combined Work, in the
-       manner specified by section 6 of the GNU GPL for conveying
-       Corresponding Source.
-
-       1) Use a suitable shared library mechanism for linking with the
-       Library.  A suitable mechanism is one that (a) uses at run time
-       a copy of the Library already present on the user's computer
-       system, and (b) will operate properly with a modified version
-       of the Library that is interface-compatible with the Linked
-       Version.
-
-   e) Provide Installation Information, but only if you would otherwise
-   be required to provide such information under section 6 of the
-   GNU GPL, and only to the extent that such information is
-   necessary to install and execute a modified version of the
-   Combined Work produced by recombining or relinking the
-   Application with a modified version of the Linked Version. (If
-   you use option 4d0, the Installation Information must accompany
-   the Minimal Corresponding Source and Corresponding Application
-   Code. If you use option 4d1, you must provide the Installation
-   Information in the manner specified by section 6 of the GNU GPL
-   for conveying Corresponding Source.)
-
-  5. Combined Libraries.
-
-  You may place library facilities that are a work based on the
-Library side by side in a single library together with other library
-facilities that are not Applications and are not covered by this
-License, and convey such a combined library under terms of your
-choice, if you do both of the following:
-
-   a) Accompany the combined library with a copy of the same work based
-   on the Library, uncombined with any other library facilities,
-   conveyed under the terms of this License.
-
-   b) Give prominent notice with the combined library that part of it
-   is a work based on the Library, and explaining where to find the
-   accompanying uncombined form of the same work.
-
-  6. Revised Versions of the GNU Lesser General Public License.
-
-  The Free Software Foundation may publish revised and/or new versions
-of the GNU Lesser General Public License from time to time. Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.
-
-  Each version is given a distinguishing version number. If the
-Library as you received it specifies that a certain numbered version
-of the GNU Lesser General Public License "or any later version"
-applies to it, you have the option of following the terms and
-conditions either of that published version or of any later version
-published by the Free Software Foundation. If the Library as you
-received it does not specify a version number of the GNU Lesser
-General Public License, you may choose any version of the GNU Lesser
-General Public License ever published by the Free Software Foundation.
-
-  If the Library as you received it specifies that a proxy can decide
-whether future versions of the GNU Lesser General Public License shall
-apply, that proxy's public statement of acceptance of any version is
-permanent authorization for you to choose that version for the
-Library.
diff --git a/LICENSES/CC0-1.0.txt b/LICENSES/CC0-1.0.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a343ccd4335f66ace3f9a83dfff02212a84ef4f2
--- /dev/null
+++ b/LICENSES/CC0-1.0.txt
@@ -0,0 +1,119 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES
+NOT PROVIDE LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE
+AN ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS INFORMATION
+ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES REGARDING THE USE
+OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED HEREUNDER, AND DISCLAIMS
+LIABILITY FOR DAMAGES RESULTING FROM THE USE OF THIS DOCUMENT OR THE INFORMATION
+OR WORKS PROVIDED HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer exclusive
+Copyright and Related Rights (defined below) upon the creator and subsequent
+owner(s) (each and all, an "owner") of an original work of authorship and/or
+a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for the
+purpose of contributing to a commons of creative, cultural and scientific
+works ("Commons") that the public can reliably and without fear of later claims
+of infringement build upon, modify, incorporate in other works, reuse and
+redistribute as freely as possible in any form whatsoever and for any purposes,
+including without limitation commercial purposes. These owners may contribute
+to the Commons to promote the ideal of a free culture and the further production
+of creative, cultural and scientific works, or to gain reputation or greater
+distribution for their Work in part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any expectation
+of additional consideration or compensation, the person associating CC0 with
+a Work (the "Affirmer"), to the extent that he or she is an owner of Copyright
+and Related Rights in the Work, voluntarily elects to apply CC0 to the Work
+and publicly distribute the Work under its terms, with knowledge of his or
+her Copyright and Related Rights in the Work and the meaning and intended
+legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be protected
+by copyright and related or neighboring rights ("Copyright and Related Rights").
+Copyright and Related Rights include, but are not limited to, the following:
+
+i. the right to reproduce, adapt, distribute, perform, display, communicate,
+and translate a Work;
+
+      ii. moral rights retained by the original author(s) and/or performer(s);
+
+iii. publicity and privacy rights pertaining to a person's image or likeness
+depicted in a Work;
+
+iv. rights protecting against unfair competition in regards to a Work, subject
+to the limitations in paragraph 4(a), below;
+
+v. rights protecting the extraction, dissemination, use and reuse of data
+in a Work;
+
+vi. database rights (such as those arising under Directive 96/9/EC of the
+European Parliament and of the Council of 11 March 1996 on the legal protection
+of databases, and under any national implementation thereof, including any
+amended or successor version of such directive); and
+
+vii. other similar, equivalent or corresponding rights throughout the world
+based on applicable law or treaty, and any national implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention of,
+applicable law, Affirmer hereby overtly, fully, permanently, irrevocably and
+unconditionally waives, abandons, and surrenders all of Affirmer's Copyright
+and Related Rights and associated claims and causes of action, whether now
+known or unknown (including existing as well as future claims and causes of
+action), in the Work (i) in all territories worldwide, (ii) for the maximum
+duration provided by applicable law or treaty (including future time extensions),
+(iii) in any current or future medium and for any number of copies, and (iv)
+for any purpose whatsoever, including without limitation commercial, advertising
+or promotional purposes (the "Waiver"). Affirmer makes the Waiver for the
+benefit of each member of the public at large and to the detriment of Affirmer's
+heirs and successors, fully intending that such Waiver shall not be subject
+to revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason be
+judged legally invalid or ineffective under applicable law, then the Waiver
+shall be preserved to the maximum extent permitted taking into account Affirmer's
+express Statement of Purpose. In addition, to the extent the Waiver is so
+judged Affirmer hereby grants to each affected person a royalty-free, non
+transferable, non sublicensable, non exclusive, irrevocable and unconditional
+license to exercise Affirmer's Copyright and Related Rights in the Work (i)
+in all territories worldwide, (ii) for the maximum duration provided by applicable
+law or treaty (including future time extensions), (iii) in any current or
+future medium and for any number of copies, and (iv) for any purpose whatsoever,
+including without limitation commercial, advertising or promotional purposes
+(the "License"). The License shall be deemed effective as of the date CC0
+was applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder of
+the License, and in such case Affirmer hereby affirms that he or she will
+not (i) exercise any of his or her remaining Copyright and Related Rights
+in the Work or (ii) assert any associated claims and causes of action with
+respect to the Work, in either case contrary to Affirmer's express Statement
+of Purpose.
+
+   4. Limitations and Disclaimers.
+
+a. No trademark or patent rights held by Affirmer are waived, abandoned, surrendered,
+licensed or otherwise affected by this document.
+
+b. Affirmer offers the Work as-is and makes no representations or warranties
+of any kind concerning the Work, express, implied, statutory or otherwise,
+including without limitation warranties of title, merchantability, fitness
+for a particular purpose, non infringement, or the absence of latent or other
+defects, accuracy, or the present or absence of errors, whether or not discoverable,
+all to the greatest extent permissible under applicable law.
+
+c. Affirmer disclaims responsibility for clearing rights of other persons
+that may apply to the Work or any use thereof, including without limitation
+any person's Copyright and Related Rights in the Work. Further, Affirmer disclaims
+responsibility for obtaining any necessary consents, permissions or other
+rights required for any use of the Work.
+
+d. Affirmer understands and acknowledges that Creative Commons is not a party
+to this document and has no duty or obligation with respect to this CC0 or
+use of the Work.
diff --git a/LICENSES/LGPL-3.0-or-later.txt b/LICENSES/LGPL-3.0-or-later.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bd405afbefe8ca71580437a5deedb48f1084f420
--- /dev/null
+++ b/LICENSES/LGPL-3.0-or-later.txt
@@ -0,0 +1,163 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+This version of the GNU Lesser General Public License incorporates the terms
+and conditions of version 3 of the GNU General Public License, supplemented
+by the additional permissions listed below.
+
+   0. Additional Definitions.
+
+      
+
+As used herein, "this License" refers to version 3 of the GNU Lesser General
+Public License, and the "GNU GPL" refers to version 3 of the GNU General Public
+License.
+
+      
+
+"The Library" refers to a covered work governed by this License, other than
+an Application or a Combined Work as defined below.
+
+      
+
+An "Application" is any work that makes use of an interface provided by the
+Library, but which is not otherwise based on the Library. Defining a subclass
+of a class defined by the Library is deemed a mode of using an interface provided
+by the Library.
+
+      
+
+A "Combined Work" is a work produced by combining or linking an Application
+with the Library. The particular version of the Library with which the Combined
+Work was made is also called the "Linked Version".
+
+      
+
+The "Minimal Corresponding Source" for a Combined Work means the Corresponding
+Source for the Combined Work, excluding any source code for portions of the
+Combined Work that, considered in isolation, are based on the Application,
+and not on the Linked Version.
+
+      
+
+The "Corresponding Application Code" for a Combined Work means the object
+code and/or source code for the Application, including any data and utility
+programs needed for reproducing the Combined Work from the Application, but
+excluding the System Libraries of the Combined Work.
+
+   1. Exception to Section 3 of the GNU GPL.
+
+You may convey a covered work under sections 3 and 4 of this License without
+being bound by section 3 of the GNU GPL.
+
+   2. Conveying Modified Versions.
+
+If you modify a copy of the Library, and, in your modifications, a facility
+refers to a function or data to be supplied by an Application that uses the
+facility (other than as an argument passed when the facility is invoked),
+then you may convey a copy of the modified version:
+
+a) under this License, provided that you make a good faith effort to ensure
+that, in the event an Application does not supply the function or data, the
+facility still operates, and performs whatever part of its purpose remains
+meaningful, or
+
+b) under the GNU GPL, with none of the additional permissions of this License
+applicable to that copy.
+
+   3. Object Code Incorporating Material from Library Header Files.
+
+The object code form of an Application may incorporate material from a header
+file that is part of the Library. You may convey such object code under terms
+of your choice, provided that, if the incorporated material is not limited
+to numerical parameters, data structure layouts and accessors, or small macros,
+inline functions and templates (ten or fewer lines in length), you do both
+of the following:
+
+a) Give prominent notice with each copy of the object code that the Library
+is used in it and that the Library and its use are covered by this License.
+
+b) Accompany the object code with a copy of the GNU GPL and this license document.
+
+   4. Combined Works.
+
+You may convey a Combined Work under terms of your choice that, taken together,
+effectively do not restrict modification of the portions of the Library contained
+in the Combined Work and reverse engineering for debugging such modifications,
+if you also do each of the following:
+
+a) Give prominent notice with each copy of the Combined Work that the Library
+is used in it and that the Library and its use are covered by this License.
+
+b) Accompany the Combined Work with a copy of the GNU GPL and this license
+document.
+
+c) For a Combined Work that displays copyright notices during execution, include
+the copyright notice for the Library among these notices, as well as a reference
+directing the user to the copies of the GNU GPL and this license document.
+
+      d) Do one of the following:
+
+0) Convey the Minimal Corresponding Source under the terms of this License,
+and the Corresponding Application Code in a form suitable for, and under terms
+that permit, the user to recombine or relink the Application with a modified
+version of the Linked Version to produce a modified Combined Work, in the
+manner specified by section 6 of the GNU GPL for conveying Corresponding Source.
+
+1) Use a suitable shared library mechanism for linking with the Library. A
+suitable mechanism is one that (a) uses at run time a copy of the Library
+already present on the user's computer system, and (b) will operate properly
+with a modified version of the Library that is interface-compatible with the
+Linked Version.
+
+e) Provide Installation Information, but only if you would otherwise be required
+to provide such information under section 6 of the GNU GPL, and only to the
+extent that such information is necessary to install and execute a modified
+version of the Combined Work produced by recombining or relinking the Application
+with a modified version of the Linked Version. (If you use option 4d0, the
+Installation Information must accompany the Minimal Corresponding Source and
+Corresponding Application Code. If you use option 4d1, you must provide the
+Installation Information in the manner specified by section 6 of the GNU GPL
+for conveying Corresponding Source.)
+
+   5. Combined Libraries.
+
+You may place library facilities that are a work based on the Library side
+by side in a single library together with other library facilities that are
+not Applications and are not covered by this License, and convey such a combined
+library under terms of your choice, if you do both of the following:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities, conveyed under the
+terms of this License.
+
+b) Give prominent notice with the combined library that part of it is a work
+based on the Library, and explaining where to find the accompanying uncombined
+form of the same work.
+
+   6. Revised Versions of the GNU Lesser General Public License.
+
+The Free Software Foundation may publish revised and/or new versions of the
+GNU Lesser General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library as you
+received it specifies that a certain numbered version of the GNU Lesser General
+Public License "or any later version" applies to it, you have the option of
+following the terms and conditions either of that published version or of
+any later version published by the Free Software Foundation. If the Library
+as you received it does not specify a version number of the GNU Lesser General
+Public License, you may choose any version of the GNU Lesser General Public
+License ever published by the Free Software Foundation.
+
+If the Library as you received it specifies that a proxy can decide whether
+future versions of the GNU Lesser General Public License shall apply, that
+proxy's public statement of acceptance of any version is permanent authorization
+for you to choose that version for the Library.
diff --git a/data/interface.ui b/data/interface.ui
index 62a510369e3608bcc63008cb7e73b5ac797021ae..7546571b5487d6c22a5056440c915bdda2e40ed9 100644
--- a/data/interface.ui
+++ b/data/interface.ui
@@ -1,4 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  SPDX-FileCopyrightText: 2012-2019 Bruce Cowan <bruce@bcowan.me.uk>
+
+  SPDX-License-Identifier: LGPL-3.0-or-later
+-->
 <!-- Generated with glade 3.22.1 -->
 <interface>
   <requires lib="gtk+" version="3.16"/>
diff --git a/data/menu.ui b/data/menu.ui
index 63db880ab1cb507604b2116da2e656d05ced8b40..76080183e3fd5bd6c97944a9e12fcbcae533da47 100644
--- a/data/menu.ui
+++ b/data/menu.ui
@@ -1,4 +1,9 @@
 <?xml version="1.0"?>
+<!--
+  SPDX-FileCopyrightText: 2017 Bruce Cowan <bruce@bcowan.me.uk>
+
+  SPDX-License-Identifier: LGPL-3.0-or-later
+-->
 <interface>
   <menu id="appmenu">
     <section>
diff --git a/data/meson.build b/data/meson.build
index aa97c822af728d8dc39476946580a6bb351ffb3a..6b18aff5521cbe5a5d68679ff9fc945c87bb5b91 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2016, 2018 Bruce Cowan <bruce@bcowan.me.uk>
+#
+# SPDX-License-Identifier: CC0-1.0
+
 gnome = import('gnome')
 
 resources = gnome.compile_resources('gen-resources',
diff --git a/data/rugby.css b/data/rugby.css
index daaa65170ecb95d737b2b06f0971d444c463ccb7..18bcf67543829202306630247d02605be25b9cff 100644
--- a/data/rugby.css
+++ b/data/rugby.css
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2012-2018 Bruce Cowan <bruce@bcowan.me.uk>
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ */
+
 .level-cell.fill-block
 {
     border-radius: 10px;
diff --git a/data/rugby.gresource.xml b/data/rugby.gresource.xml
index a32d207dfd12092da5eee2d43420f32eddca92ae..7dd2d80ea08c6c20432f908aac9b429b23ad49f1 100644
--- a/data/rugby.gresource.xml
+++ b/data/rugby.gresource.xml
@@ -1,4 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  SPDX-FileCopyrightText: 2012-2017 Bruce Cowan <bruce@bcowan.me.uk>
+
+  SPDX-License-Identifier: LGPL-3.0-or-later
+-->
 <gresources>
   <gresource prefix="/uk/me/bcowan/rugby">
     <file preprocess="xml-stripblanks">interface.ui</file>
diff --git a/meson.build b/meson.build
index 43a5773af4f52c38a3a0d7b81deb82bb30c16ca4..5bf15c2dc090756623919643b0ab44ff9f4a6d23 100644
--- a/meson.build
+++ b/meson.build
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2016-2019 Bruce Cowan <bruce@bcowan.me.uk>
+#
+# SPDX-License-Identifier: CC0-1.0
+
 project('rugby', 'c', license:'LGPL', meson_version: '>=0.45.0')
 
 add_project_arguments('-Wdeprecated-declarations', language: 'c')
diff --git a/meson_options.txt b/meson_options.txt
index c3f6fbcbdd1e1a1091e70b8ef76b1148c9401134..f5e7adcf72c53f12935c92ca6e9e8ac6e369bbdf 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2018, 2019 Bruce Cowan <bruce@bcowan.me.uk>
+#
+# SPDX-License-Identifier: CC0-1.0
+
 option('try_points', type: 'string', value: '7')
 option('utry_points', type: 'string', value: '5')
 option('kick_points', type: 'string', value: '3')
diff --git a/src/find_year.sh b/src/find_year.sh
index d50d25f713a484862034f0f47c06df8f1b942b8f..9eaa2f5e985857442b58690ac3bed2dbebdceb10 100755
--- a/src/find_year.sh
+++ b/src/find_year.sh
@@ -1,3 +1,6 @@
 #!/bin/sh
+# SPDX-FileCopyrightText: 2018, 2019 Bruce Cowan <bruce@bcowan.me.uk>
+#
+# SPDX-License-Identifier: CC0-1.0
 
 git log -1 --format=%cd --date-format:%Y
diff --git a/src/main.c b/src/main.c
index 49fd89b9da17fcdf0b02d33e2afbc047893dc5b3..67021082132b72c20fdd5544958aebc14bb6af5e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,19 +1,5 @@
-/* main.c
- *
- * Copyright 2012, 2016-2018 Bruce Cowan <bruce@bcowan.eu>
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/*
+ * SPDX-FileCopyrightText: 2012, 2016-2018 Bruce Cowan <bruce@bcowan.me.uk>
  *
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */
diff --git a/src/meson.build b/src/meson.build
index bfb2b6fb7d16c26a13fcda596cd145a33827972e..27d3c6e477a0a968a541c33f2d4bebac606718f8 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2016-2018 Bruce Cowan <bruce@bcowan.me.uk>
+#
+# SPDX-License-Identifier: CC0-1.0
+
 gnome = import('gnome')
 
 conf = configuration_data()
diff --git a/src/rugby-app-window.c b/src/rugby-app-window.c
index 523a31081d731dd6ec29570c1c8d24179346caf7..116e8d4e00b94c76c54e7e0829d7071c1be69984 100644
--- a/src/rugby-app-window.c
+++ b/src/rugby-app-window.c
@@ -1,19 +1,5 @@
-/* rugby-app-window.c
- *
- * Copyright 2017-2018 Bruce Cowan <bruce@bcowan.eu>
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/*
+ * SPDX-FileCopyrightText: 2017, 2018 Bruce Cowan <bruce@bcowan.me.uk>
  *
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */
diff --git a/src/rugby-app-window.h b/src/rugby-app-window.h
index 95dae547c992d459726a3ece84f5549dfabf9e37..2bde4d0b40e65c81c7bff12a9ab0917d91817e03 100644
--- a/src/rugby-app-window.h
+++ b/src/rugby-app-window.h
@@ -1,19 +1,5 @@
-/* rugby-app-window.h
- *
- * Copyright 2017 Bruce Cowan <bruce@bcowan.eu>
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/*
+ * SPDX-FileCopyrightText: 2017 Bruce Cowan <bruce@bcowan.me.uk>
  *
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */
diff --git a/src/rugby-list-store.c b/src/rugby-list-store.c
index a96fe45aefcade185c73ea5fedbd1da1e0418a62..f7b2da7e805b378ee222dce02202ae77379bcd55 100644
--- a/src/rugby-list-store.c
+++ b/src/rugby-list-store.c
@@ -1,19 +1,5 @@
-/* rugby-list-store.c
- *
- * Copyright 2018 Bruce Cowan <bruce@bcowan.eu>
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/*
+ * SPDX-FileCopyrightText: 2018 Bruce Cowan <bruce@bcowan.me.uk>
  *
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */
diff --git a/src/rugby-list-store.h b/src/rugby-list-store.h
index 6a3f9062463b9a58d8e4b3ccb284f35c80da040e..9feb712093310bf670a46ba2fe2c26ad6c0d6c12 100644
--- a/src/rugby-list-store.h
+++ b/src/rugby-list-store.h
@@ -1,19 +1,5 @@
-/* rugby-list-store.h
- *
- * Copyright 2018 Bruce Cowan <bruce@bcowan.eu>
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/*
+ * SPDX-FileCopyrightText: 2018 Bruce Cowan <bruce@bcowan.me.uk>
  *
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */
diff --git a/src/rugby-possibility-widget.c b/src/rugby-possibility-widget.c
index 3b32624182dc011002e216f04591dacc60e9e7cf..712003d113183db5f7618a378353a2592535a5b3 100644
--- a/src/rugby-possibility-widget.c
+++ b/src/rugby-possibility-widget.c
@@ -1,19 +1,5 @@
-/* rugby-possibility-widget.c
- *
- * Copyright 2018 Bruce Cowan <bruce@bcowan.eu>
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/*
+ * SPDX-FileCopyrightText: 2018 Bruce Cowan <bruce@bcowan.me.uk>
  *
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */
diff --git a/src/rugby-possibility-widget.h b/src/rugby-possibility-widget.h
index f96b202094a31e970052943ee51fa90dfaf133cb..a1100b9d39fff2ca41c626011e2396cbcb6620a0 100644
--- a/src/rugby-possibility-widget.h
+++ b/src/rugby-possibility-widget.h
@@ -1,19 +1,5 @@
-/* rugby-possibility-widget.h
- *
- * Copyright 2018 Bruce Cowan <bruce@bcowan.eu>
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/*
+ * SPDX-FileCopyrightText: 2018 Bruce Cowan <bruce@bcowan.me.uk>
  *
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */
diff --git a/src/rugby-possibility.c b/src/rugby-possibility.c
index 3bc24e60c3d60153b75a0a5cbd4d85ab2ae3594f..1372a6fdf1a78adf1f65fdf4e77bf1b28278678f 100644
--- a/src/rugby-possibility.c
+++ b/src/rugby-possibility.c
@@ -1,19 +1,5 @@
-/* rugby-possibility.c
- *
- * Copyright 2018 Bruce Cowan <bruce@bcowan.eu>
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/*
+ * SPDX-FileCopyrightText: 2018 Bruce Cowan <bruce@bcowan.me.uk>
  *
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */
diff --git a/src/rugby-possibility.h b/src/rugby-possibility.h
index f99c3bb7bdce97092013774f5dd7bdf10b51815e..db3d557e44044b636d2940e7413e2887f37849fb 100644
--- a/src/rugby-possibility.h
+++ b/src/rugby-possibility.h
@@ -1,19 +1,5 @@
-/* rugby-possibility.h
- *
- * Copyright 2018 Bruce Cowan <bruce@bcowan.eu>
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+/*
+ * SPDX-FileCopyrightText: 2018 Bruce Cowan <bruce@bcowan.me.uk>
  *
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */