diff --git a/20200723095845-software_development.org b/20200723095845-software_development.org
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@@ -5,6 +5,7 @@
 #+title: Software Development
 
 * Topics
+- [[id:b4f3d9e6-99b6-45d6-9b99-a0f5d87ce6a9][Programming Languages]]
 - [[id:75180562-f492-4501-9a44-0c361a32eabf][Cross-Site Request Forgery]]
 * Conferences
 - [[id:521281f0-c051-4ef0-87e1-7776ea9f836e][Strange Loop 2018]]
diff --git a/20211008182136-programming_languages.org b/20211008182136-programming_languages.org
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@@ -0,0 +1,7 @@
+:PROPERTIES:
+:ID:       b4f3d9e6-99b6-45d6-9b99-a0f5d87ce6a9
+:END:
+#+title: Programming Languages
+
+- [[id:17dfef04-df4b-430d-8bae-8539c1f14e40][OCaml]]
+- [[id:cda9c620-fec5-4549-b979-22fc06819d77][Python]]
diff --git a/20211008182221-ocaml.org b/20211008182221-ocaml.org
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+++ b/20211008182221-ocaml.org
@@ -0,0 +1,14 @@
+:PROPERTIES:
+:ID:       17dfef04-df4b-430d-8bae-8539c1f14e40
+:END:
+#+title: OCaml
+
+- Family :: ML
+- File extensions :: .ml
+
+* Package managers
+- opam :: The main OCaml package manager
+* Build tools
+- dune :: Organize and compile projects
+* REPLs
+- utop :: Includes available completions