add two talks

data/links.yml

@@ -151,8 +151,25 @@
 
 # AUDIO/VIDEO
 
-# TODO: OSPOlogy
-# TODO: BitKom bfoss 2023
+- desc: '"SBOMs - A Short Introduction"'
+  type: av
+  date: 2023-10
+  links:
+    - href: https://community.linuxfoundation.org/events/details/lfhq-ospology-european-chapter-presents-ospologylive-frankfurt/
+      text: Talk @ OSPOlogy Live
+  slides: https://up.mehl.mx/slides/2023-10-10-SBOMs-A-Short-Introduction-OSPOlogy.pdf
+  lang: ["EN"]
+  tags: ["supplychain", "ospo", "itsec"]
+
+- desc: '"What are Open Source maintainers actually doing?"'
+  type: av
+  date: 2023-09
+  links:
+    - href: https://www.bitkom.org/bfoss23
+      text: Talk @ Bitkom Forum Open Source
+  slides: https://www.bitkom.org/sites/main/files/2023-10/BFOSS23-Praesentation-Schumacher-Mehl-Was-machen-eigentlich-Open-Source-Maintainer.pdf
+  lang: ["DE"]
+  tags: ["ospo", "community"]
 
 - desc: '"Hardware bills of material with Deutsche Bahn"'
   type: av