diff --git a/by_date/2023-03-21.seed b/by_date/2023-03-21.seed
new file mode 100644
index 0000000..9859862
--- /dev/null
+++ b/by_date/2023-03-21.seed
@@ -0,0 +1,25 @@
+blog, electronics, personal, technical:
+https://ralsina.me/rss.xml
+
+blog, personal, technical:
+https://blakewatson.com/feed
+
+blog, electronics, personal, software, technical:
+http://brettbeauregard.com/blog/2011/04/improving-the-beginners-pid-introduction/
+
+blog, personal:
+https://asnewman.github.io/
+
+blog, personal, software, technical:
+https://blog.sunfishcode.online/atom.xml
+https://code.mendhak.com/in-appreciation-of-fdroid/
+https://daniel.haxx.se/blog/feed/
+https://eta.st/feed.xml
+https://hillelwayne.com/post/refinement/
+https://iluxonchik.github.io/regular-expression-check-if-number-is-prime/
+https://jacksonchen666.com/posts/index.xml
+https://pierre-couy.dev/tinkering/2023/03/turning-rpi-into-external-monitor-driver.html
+
+blog, electronics, man, mechanical, personal, software, technical:
+https://lcamtuf.coredump.cx/
+