commit 8ce10cb6c2fcfab028457abdd963c4ed7251123d
Author: chn <chn@chn.moe>
Date:   Thu Sep 7 23:08:31 2023 +0800

    init

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..8392d15
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9a1bdb4
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.vscode
+.direnv
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..1f48883
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1693953029,
+        "narHash": "sha256-1+28KQl4YC4IBzKo/epvEyK5KH4MlgoYueJ8YwLGbOc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4077a0e4ac3356222bc1f0a070af7939c3098535",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..b0d00cb
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,11 @@
+{
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
+
+  outputs = inputs: let pkgs = inputs.nixpkgs.legacyPackages.x86_64-linux; in
+  {
+    devShell.x86_64-linux = pkgs.mkShell.override { stdenv = pkgs.gcc13Stdenv; }
+    {
+      buildInputs = with pkgs; [ yaml-cpp eigen ];
+    };
+  };
+}
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..e69de29