feat: add nix flake

Author: icecreammatt

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -158,3 +158,7 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+
+# Nix
+result
+.direnv

flake.lock

@@ -0,0 +1,34 @@
+{
+  description = "A terminal application to view, tail, merge, and search log files (plus JSONL).";
+
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    poetry2nix = {
+      url = "github:nix-community/poetry2nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    poetry2nix,
+  }:
+    flake-utils.lib.eachDefaultSystem (system: let
+      # see https://github.com/nix-community/poetry2nix/tree/master#api for more functions and examples.
+      pkgs = nixpkgs.legacyPackages.${system};
+      inherit (poetry2nix.lib.mkPoetry2Nix {inherit pkgs;}) mkPoetryApplication;
+    in {
+      packages = {
+        toolong = mkPoetryApplication {projectDir = self;};
+        default = self.packages.${system}.toolong;
+      };
+
+      devShells.default = pkgs.mkShell {
+        inputsFrom = [self.packages.${system}.toolong];
+        packages = [pkgs.poetry];
+      };
+    });
+}