Add dependencies

flake.lock

@@ -0,0 +1,41 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1634851050,
+        "narHash": "sha256-N83GlSGPJJdcqhUxSCS/WwW5pksYf3VP1M13cDRTSVA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c91f3de5adaf1de973b797ef7485e441a65b8935",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1636803232,
+        "narHash": "sha256-QD3B6q4NyT9gMaHoejD01N5musSfncawOkyX353DeGY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "83d501e64ce23aa383e56fead823c3c132e6b18e",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

shell.nix

@@ -1,9 +1,5 @@
-{ pkgs ? import <nixpkgs> {} }:
+{ pkgs ? import <nixpkgs> { } }:
 
 with pkgs;
 
-mkShell {
-  buildInputs = [
-
-  ];
-}
+mkShell { buildInputs = [ python39 python39Packages.beautifulsoup4 ]; }