diff --git a/CC-BY-NC-SA-4.0 b/CC-BY-NC-SA-4.0
new file mode 100644
index 0000000..d60efe4
--- /dev/null
+++ b/CC-BY-NC-SA-4.0
@@ -0,0 +1,437 @@
+Attribution-NonCommercial-ShareAlike 4.0 International
+
+=======================================================================
+
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+Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International
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+
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+
+ In addition to the conditions in Section 3(a), if You Share
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+
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+ license with the same License Elements, this version or
+ later, or a BY-NC-SA Compatible License.
+
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+ in any reasonable manner based on the medium, means, and
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+
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+ or conditions on, or apply any Effective Technological
+ Measures to, Adapted Material that restrict exercise of the
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+
+
+Section 4 -- Sui Generis Database Rights.
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+ to extract, reuse, reproduce, and Share all or a substantial
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+
+ b. if You include all or a substantial portion of the database
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+
+ c. You must comply with the conditions in Section 3(a) if You Share
+ all or a substantial portion of the contents of the database.
+
+For the avoidance of doubt, this Section 4 supplements and does not
+replace Your obligations under this Public License where the Licensed
+Rights include other Copyright and Similar Rights.
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+
+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
+
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+
+ c. The disclaimer of warranties and limitation of liability provided
+ above shall be interpreted in a manner that, to the extent
+ possible, most closely approximates an absolute disclaimer and
+ waiver of all liability.
+
+
+Section 6 -- Term and Termination.
+
+ a. This Public License applies for the term of the Copyright and
+ Similar Rights licensed here. However, if You fail to comply with
+ this Public License, then Your rights under this Public License
+ terminate automatically.
+
+ b. Where Your right to use the Licensed Material has terminated under
+ Section 6(a), it reinstates:
+
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+ it is cured within 30 days of Your discovery of the
+ violation; or
+
+ 2. upon express reinstatement by the Licensor.
+
+ For the avoidance of doubt, this Section 6(b) does not affect any
+ right the Licensor may have to seek remedies for Your violations
+ of this Public License.
+
+ c. For the avoidance of doubt, the Licensor may also offer the
+ Licensed Material under separate terms or conditions or stop
+ distributing the Licensed Material at any time; however, doing so
+ will not terminate this Public License.
+
+ d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
+ License.
+
+
+Section 7 -- Other Terms and Conditions.
+
+ a. The Licensor shall not be bound by any additional or different
+ terms or conditions communicated by You unless expressly agreed.
+
+ b. Any arrangements, understandings, or agreements regarding the
+ Licensed Material not stated herein are separate from and
+ independent of the terms and conditions of this Public License.
+
+
+Section 8 -- Interpretation.
+
+ a. For the avoidance of doubt, this Public License does not, and
+ shall not be interpreted to, reduce, limit, restrict, or impose
+ conditions on any use of the Licensed Material that could lawfully
+ be made without permission under this Public License.
+
+ b. To the extent possible, if any provision of this Public License is
+ deemed unenforceable, it shall be automatically reformed to the
+ minimum extent necessary to make it enforceable. If the provision
+ cannot be reformed, it shall be severed from this Public License
+ without affecting the enforceability of the remaining terms and
+ conditions.
+
+ c. No term or condition of this Public License will be waived and no
+ failure to comply consented to unless expressly agreed to by the
+ Licensor.
+
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+ as a limitation upon, or waiver of, any privileges and immunities
+ that apply to the Licensor or You, including from the legal
+ processes of any jurisdiction or authority.
+
+=======================================================================
+
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+Creative Commons may be contacted at creativecommons.org.
diff --git a/README.md b/README.md
index ce124e5..cf97e71 100644
--- a/README.md
+++ b/README.md
@@ -4,4 +4,4 @@ my personal website powered by [Vite](https://vitejs.dev/)
-code is licensed under MIT,
words and images are licensed under CC BY-NC 4.0.
+code is licensed under MIT,
words and images are licensed under CC BY-NC-SA 4.0.
diff --git a/scripts/rss.ts b/scripts/rss.ts
index 7f02fd5..13fd1de 100644
--- a/scripts/rss.ts
+++ b/scripts/rss.ts
@@ -31,7 +31,7 @@ async function buildBlogRSS() {
description: 'Anthony Fu\' Blog',
id: 'https://antfu.me/',
link: 'https://antfu.me/',
- copyright: 'CC BY-NC 4.0 2021 © Anthony Fu',
+ copyright: 'CC BY-NC-SA 4.0 2021 © Anthony Fu',
feedLinks: {
json: 'https://antfu.me/feed.json',
atom: 'https://antfu.me/feed.atom',
@@ -76,7 +76,7 @@ async function buildNotesRSS() {
description: 'Anthony Fu\'s Notes',
id: 'https://antfu.me/notes',
link: 'https://antfu.me/notes',
- copyright: 'CC BY-NC 4.0 2021 © Anthony Fu',
+ copyright: 'CC BY-NC-SA 4.0 2021 © Anthony Fu',
feedLinks: {
json: 'https://antfu.me/notes/feed.json',
atom: 'https://antfu.me/notes/feed.atom',
diff --git a/src/components/Footer.vue b/src/components/Footer.vue
index 99f98af..3cbdb74 100644
--- a/src/components/Footer.vue
+++ b/src/components/Footer.vue
@@ -1,6 +1,6 @@