diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..6de8a8a
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,3 @@
+source_url "https://raw.githubusercontent.com/cachix/devenv/d1f7b48e35e6dee421cfd0f51481d17f77586997/direnvrc" "sha256-YBzqskFZxmNb3kYVoKD9ZixoPXJh1C9ZvTLGFRkauZ0="
+
+use devenv
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index b63da45..b201bdb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,4 +39,14 @@ bin/
 .vscode/
 
 ### Mac OS ###
-.DS_Store
\ No newline at end of file
+.DS_Store
+# Devenv
+.devenv*
+devenv.local.nix
+
+# direnv
+.direnv
+
+# pre-commit
+.pre-commit-config.yaml
+
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index 1bec35e..08e871b 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -1,5 +1,11 @@
 <component name="ProjectCodeStyleConfiguration">
   <code_scheme name="Project" version="173">
+    <option name="OTHER_INDENT_OPTIONS">
+      <value>
+        <option name="INDENT_SIZE" value="2" />
+        <option name="TAB_SIZE" value="2" />
+      </value>
+    </option>
     <JetCodeStyleSettings>
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
diff --git a/.idea/kotlinc.xml b/.idea/kotlinc.xml
new file mode 100644
index 0000000..fdf8d99
--- /dev/null
+++ b/.idea/kotlinc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="KotlinJpsPluginSettings">
+    <option name="version" value="1.9.0" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 87a20fc..0363e93 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/devenv.lock b/devenv.lock
new file mode 100644
index 0000000..7e02c0f
--- /dev/null
+++ b/devenv.lock
@@ -0,0 +1,156 @@
+{
+  "nodes": {
+    "devenv": {
+      "locked": {
+        "dir": "src/modules",
+        "lastModified": 1699273601,
+        "narHash": "sha256-rBTtJ3Vln63RwzyVFzcAy6hW5mXTZOLXwJ/p5Sz0T5k=",
+        "owner": "cachix",
+        "repo": "devenv",
+        "rev": "af34c270e708675c02831c5a4d6d1d3d6efb0854",
+        "type": "github"
+      },
+      "original": {
+        "dir": "src/modules",
+        "owner": "cachix",
+        "repo": "devenv",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1685518550,
+        "narHash": "sha256-o2d0KcvaXzTrPRIo0kOLV0/QXHhDQ5DTi+OxcjO8xqY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "a1720a10a6cfe8234c0e93907ffe81be440f4cef",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1660459072,
+        "narHash": "sha256-8DFJjXG8zqoONA1vXtgeKXy68KdJL5UaXR8NtVMUbx8=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "a20de23b925fd8264fd7fad6454652e142fd7f73",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1699186365,
+        "narHash": "sha256-Pxrw5U8mBsL3NlrJ6q1KK1crzvSUcdfwb9083sKDrcU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a0b3b06b7a82c965ae0bb1d59f6e386fe755001d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1685801374,
+        "narHash": "sha256-otaSUoFEMM+LjBI1XL/xGB5ao6IwnZOXc47qhIgJe8U=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "c37ca420157f4abc31e26f436c1145f8951ff373",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1699271226,
+        "narHash": "sha256-8Jt1KW3xTjolD6c6OjJm9USx/jmL+VVmbooADCkdDfU=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "ea758da1a6dcde6dc36db348ed690d09b9864128",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devenv": "devenv",
+        "nixpkgs": "nixpkgs",
+        "pre-commit-hooks": "pre-commit-hooks"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/devenv.nix b/devenv.nix
new file mode 100644
index 0000000..ae37daf
--- /dev/null
+++ b/devenv.nix
@@ -0,0 +1,35 @@
+{ pkgs, ... }:
+
+{
+  # https://devenv.sh/basics/
+  env.NAME = "mc-plugin";
+
+  # https://devenv.sh/packages/
+  packages = with pkgs;[
+    git
+  ];
+
+  # https://devenv.sh/scripts/
+  scripts.welcome-banner.exec = ''
+    echo "Welcome to the $NAME development environment."
+    echo "Java version: $(java --version | head -n 1 | cut -d ' ' -f 2)"
+  '';
+
+  enterShell = "welcome-banner";
+
+  # https://devenv.sh/languages/
+  languages.java = {
+    enable = true;
+    gradle.enable = true;
+    jdk.package = pkgs.jdk17;
+  };
+  languages.kotlin.enable = true;
+
+  # https://devenv.sh/pre-commit-hooks/
+  # pre-commit.hooks.shellcheck.enable = true;
+
+  # https://devenv.sh/processes/
+  # processes.ping.exec = "ping example.com";
+
+  # See full reference at https://devenv.sh/reference/options/
+}
diff --git a/devenv.yaml b/devenv.yaml
new file mode 100644
index 0000000..c7cb5ce
--- /dev/null
+++ b/devenv.yaml
@@ -0,0 +1,3 @@
+inputs:
+  nixpkgs:
+    url: github:NixOS/nixpkgs/nixpkgs-unstable