Update envs: C/C++ and LaTeX

env/latex.nix

@@ -0,0 +1,31 @@
+{
+  description = "LaTeX Environment";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+  inputs.devshell.url = "github:numtide/devshell";
+
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    devshell,
+  }:
+    flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {
+        inherit system;
+        config.allowUnfree = true;
+        overlays = [devshell.overlays.default];
+      };
+
+      # TODO: Custom LaTeX "distribution"? With curated packages?
+    in {
+      devShell = pkgs.devshell.mkShell {
+        name = "LaTeX Environment";
+
+        packages = with pkgs; [
+          texlab
+        ];
+      };
+    });
+}