modularize

CHANGELOG.md

@@ -12,7 +12,33 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+## [0.2.0] - 2025-12-25
+
+### Added
+
+- 100% documentation coverage
+- `haskellPackages.hlint` in `flake.nix` dev shell
+- `README.md`
+
+### Changed
+
+- split into the following modules
+    - `GLSL`
+    - `GLSL.Compile`
+    - `GLSL.Internal`
+    - `GLSL.Internal.Compile`
+- only the former 2 have type-safe gurantees for generated code
+- most projects should only import the former 2
+    - see sample in `Main.hs`
+
+### Fixed
+
+- issue where user was expected to correctly type variable declarations
+    - user must now only use the correct constructor
+        - old: `someVar = var (id "some_var") T'float :: Exp T'float`
+        - new: `someVar = var'float $ id "some_var"`
+
 ## [0.1.0] - 2025-12-21
 
 - initialized project
-- added CHANGELOG.md
+- added `CHANGELOG.md`