add nix shell thingy

README.md

@@ -1,3 +1,28 @@
 # nyxask
 
-qna software thingy
+qna software thingy
+
+## Setup
+
+1. Create the database:
+```sql
+CREATE DATABASE nyxask WITH ENCODING = 'UTF8';
+CREATE USER nyxask WITH ENCRYPTED PASSWORD 'nyxask';
+GRANT ALL PRIVILEGES ON DATABASE nyxask TO nyxask;
+ALTER DATABASE nyxask OWNER TO nyxask;
+\q
+```
+2. Create the venv:
+```shell
+python -m venv ./.venv
+```
+
+3. Install requirements:
+```shell
+pip install -r requirements.txt
+```
+
+4. Run the app:
+```shell
+python app/app.py
+```

shell.nix

@@ -0,0 +1,12 @@
+let
+  pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/b62d2a95c72fb068aecd374a7262b37ed92df82b.tar.gz") {};
+in pkgs.mkShell {
+  packages = [
+    (pkgs.python313.withPackages (python-pkgs: with python-pkgs; [
+      # select Python packages here
+      flask
+      flask-sqlalchemy
+      psycopg2
+    ]))
+  ];
+}