diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,5 @@
+# Changelog for nix
+
+## 0.1.0.0
+
+- Initial release
diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
@@ -0,0 +1,6 @@
+# nix
+
+Haskell wrapper for the Nix CLI providing a clean API for interacting with Nix commands and environments.
+
+> [!NOTE]
+> Work in progress. More features will be added.
diff --git a/nix.cabal b/nix.cabal
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--- /dev/null
+++ b/nix.cabal
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+cabal-version: 2.0
+
+-- This file has been generated from package.yaml by hpack version 0.38.2.
+--
+-- see: https://github.com/sol/hpack
+
+name:           nix
+version:        0.1.0.0
+synopsis:       Haskell wrapper for the Nix CLI
+description:    A Haskell library providing a nice wrapper for the Nix CLI.
+category:       System
+homepage:       https://github.com/juspay/vira/tree/main/packages/nix
+author:         Sridhar Ratnakumar
+maintainer:     srid@srid.ca
+copyright:      2025 Sridhar Ratnakumar
+license:        MIT
+build-type:     Simple
+extra-source-files:
+    README.md
+    CHANGELOG.md
+
+library
+  exposed-modules:
+      System.Nix
+      System.Nix.Flake.Develop
+      System.Nix.System
+  other-modules:
+      Paths_nix
+  autogen-modules:
+      Paths_nix
+  hs-source-dirs:
+      src
+  default-extensions:
+      DataKinds
+      DeriveDataTypeable
+      DeriveGeneric
+      DeriveTraversable
+      DerivingStrategies
+      DerivingVia
+      ExplicitForAll
+      FlexibleContexts
+      FlexibleInstances
+      GeneralizedNewtypeDeriving
+      ImportQualifiedPost
+      LambdaCase
+      MultiParamTypeClasses
+      MultiWayIf
+      NamedFieldPuns
+      NoStarIsType
+      NumericUnderscores
+      OverloadedStrings
+      ScopedTypeVariables
+      StrictData
+      TypeApplications
+      TypeFamilies
+      TypeOperators
+      TypeSynonymInstances
+      ViewPatterns
+  ghc-options: -Wall -optP-Wno-nonportable-include-path -Wincomplete-record-updates -Wincomplete-uni-patterns -Wmissing-deriving-strategies -Wunused-foralls -fprint-explicit-foralls -fprint-explicit-kinds
+  build-depends:
+      base ==4.*
+    , relude >=1.0
+  mixins:
+      base hiding (Prelude)
+    , relude (Relude as Prelude, Relude.Container.One)
+    , relude 
+  default-language: GHC2021
diff --git a/src/System/Nix.hs b/src/System/Nix.hs
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--- /dev/null
+++ b/src/System/Nix.hs
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+-- | Haskell wrapper for the Nix CLI
+module System.Nix (
+  module System.Nix.Flake.Develop,
+  module System.Nix.System,
+) where
+
+import System.Nix.Flake.Develop
+import System.Nix.System
diff --git a/src/System/Nix/Flake/Develop.hs b/src/System/Nix/Flake/Develop.hs
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--- /dev/null
+++ b/src/System/Nix/Flake/Develop.hs
@@ -0,0 +1,13 @@
+-- | Working with @nix develop@
+module System.Nix.Flake.Develop (
+  inNixShell,
+) where
+
+{- | Check if running inside a nix develop shell
+
+This function checks for the IN_NIX_SHELL environment variable,
+which is set by @nix develop@.
+-}
+inNixShell :: (MonadIO m) => m Bool
+inNixShell = do
+  isJust <$> lookupEnv "IN_NIX_SHELL"
diff --git a/src/System/Nix/System.hs b/src/System/Nix/System.hs
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--- /dev/null
+++ b/src/System/Nix/System.hs
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+-- | Nix system information
+module System.Nix.System (
+  nixSystem,
+) where
+
+import System.Info qualified as SysInfo
+
+-- | Get the current Nix system string (e.g., "x86_64-linux", "aarch64-darwin")
+nixSystem :: Text
+nixSystem = toText SysInfo.arch <> "-" <> toText SysInfo.os