diff --git a/shells/hugo.nix b/shells/hugo.nix
index 9d3f5818..cc559a33 100644
--- a/shells/hugo.nix
+++ b/shells/hugo.nix
@@ -1,6 +1,8 @@
 # My usual toolchain for developing Hugo projects.
 { mkShell
 , hugo
+, asciidoctor
+, pandoc
 , git
 , go
 , nodejs_latest
@@ -9,10 +11,17 @@
 
 mkShell {
   packages = [
+    asciidoctor # Some sites use this.
+    pandoc # Also these.
     hugo # The main tool.
     go # I might use Go modules which requires the Golang runtime.
     git # VCS of my choice.
     nodejs_latest # The supported NodeJS version.
     imagemagick # Everyman's image processing framework.
   ];
+
+  inputsFrom = [
+    go
+    nodejs_latest
+  ];
 }
diff --git a/shells/latex.nix b/shells/latex.nix
index 988f69a1..3d70e8ec 100644
--- a/shells/latex.nix
+++ b/shells/latex.nix
@@ -1,4 +1,4 @@
-# Ripperootskees for the space.
+# Ripperootskees for the disk space.
 { mkShell
 , texlive
 , texlab
diff --git a/shells/lua.nix b/shells/lua.nix
index a59316ca..dca92a7e 100644
--- a/shells/lua.nix
+++ b/shells/lua.nix
@@ -1,6 +1,12 @@
 # It is much more recommended to create a project-specific development
 # environment for Lua projects instead.
-{ mkShell, lua, luarocks, stylua, sumneko-lua-language-server }:
+{ mkShell
+, gcc
+, lua
+, luarocks
+, stylua
+, sumneko-lua-language-server
+}:
 
 mkShell {
   packages = [
@@ -9,4 +15,6 @@ mkShell {
     stylua
     sumneko-lua-language-server
   ];
+
+  inputsFrom = [ lua gcc ];
 }
diff --git a/shells/rust.nix b/shells/rust.nix
index e90fe2bb..4332ca71 100644
--- a/shells/rust.nix
+++ b/shells/rust.nix
@@ -7,6 +7,8 @@
 , rustc
 , rustfmt
 , rust-analyzer
+, meson
+, ninja
 , rustPackages
 , rustPlatform
 }:
@@ -21,6 +23,10 @@ mkShell {
     rustc
     rustfmt
     rust-analyzer
+
+    # Also have these.
+    meson
+    ninja
   ];
 
   RUST_SRC_PATH = rustPlatform.rustLibSrc;