Update

main.md

@@ -42,11 +42,22 @@ If you don't know where to start, here are some suggestions. If you're new, the
 - [anarcho pacifism](anpac.md)
 - [capitalist software](capitalist_software.md)
 - [type A/B fail](fail_ab.md)
+- [free culture](free_culture.md)
 - [C tutorial](c_tutorial.md)
 - [pseudoleft](pseudoleft.md)
 - [antivirus paradox](antivirus_paradox.md)
+- [public domain](public_domain.md)
 - [history](history.md)
 
+Some more specialized topics you may want to check out are:
+
+- [3D rendering](3d_rendering.md)
+- [OOP](oop.md)
+- [procedural generation](procgen.md)
+- [optimization](optimization.md)
+- [computer graphics](graphics.md)
+- [portability](portability.md)
+
 And if you just want something more obscure and [fun](fun.md), check out these:
 
 - [esoteric programming languages](esolang.md)
@@ -57,7 +68,6 @@ And if you just want something more obscure and [fun](fun.md), check out these:
 - [bytebeat](bytebeat.md)
 - [netstalking](netstalking.md)
 - [steganography](steganography.md)
-- [computer graphics](graphics.md)
 - [lmao](lmao.md)
 - [shit](shit.md)
 - [demoscene](demoscene.md)