diff --git a/README.md b/README.md
deleted file mode 100644
index 2cfd3d5..0000000
--- a/README.md
+++ /dev/null
@@ -1,2 +0,0 @@
-# PyLlama
-
diff --git a/README.org b/README.org
new file mode 100644
index 0000000..4f722c7
--- /dev/null
+++ b/README.org
@@ -0,0 +1,4 @@
+#+TITLE: PyLlama
+
+*PyLlama* is a simple frontend to *ollama*, designed to run on old
+PCs, which other frontends don't like.
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..6c3efe9
--- /dev/null
+++ b/main.py
@@ -0,0 +1,121 @@
+import gi
+gi.require_version("Gtk", "4.0")
+from gi.repository import GLib, Gtk
+
+import ollama
+
+def set_margin_all(widget, m):
+    widget.set_margin_start(m)
+    widget.set_margin_top(m)
+    widget.set_margin_end(m)
+    widget.set_margin_bottom(m)
+
+class PyLlamaWindow(Gtk.ApplicationWindow):
+    def __init__(self, application=None, title=None):
+        super().__init__(application=application, title=title)	
+        self.set_default_size(800, 600)
+        self.cur_ai_response = None
+        
+        self.model_store = Gtk.StringList()
+        self.model_dropdown = Gtk.DropDown()
+        self.model_dropdown.set_model(self.model_store)
+        self.model_dropdown.set_tooltip_text("Select model")
+        self.model_dropdown.set_enable_search(True)
+
+        header = Gtk.HeaderBar()
+        header.set_show_title_buttons(True)
+        header.set_title_widget(self.model_dropdown)
+        
+        self.set_titlebar(header)
+        
+        vbox = Gtk.Box.new(Gtk.Orientation.VERTICAL, 6)
+        set_margin_all(vbox, 8)
+        
+        self.listbox = Gtk.ListBox.new()
+        self.listbox.set_selection_mode(Gtk.SelectionMode.NONE)
+
+        scrolled = Gtk.ScrolledWindow()
+        scrolled.set_vexpand(True)
+        scrolled.set_child(self.listbox)
+        vbox.append(scrolled)
+        
+        entry = Gtk.Entry()
+        entry_buffer = entry.get_buffer()
+        entry.set_placeholder_text("Type message and press Enter...")
+        entry.set_hexpand(True)
+        entry.set_icon_from_icon_name(Gtk.EntryIconPosition.SECONDARY, "go-next-symbolic")
+        entry.connect("activate", self.send_message)
+        entry.connect("icon_press", self.send_message)
+
+        vbox.append(entry)
+        self.set_child(vbox)
+
+        self.current_model = None
+        self.populate_models()
+
+    def populate_models(self):
+        try:
+            models = ollama.list()
+        except Exception as e:
+            models = []
+            print ("Failed to fetch models: ", e)
+
+        names = [m.model for m in models["models"]]
+        self.model_store.splice(0, len(list(self.model_store)), names)
+
+    def add_message(self, text=None, sender=True):
+        label = Gtk.Label()
+        label.set_selectable(True)
+        label.set_wrap(True)
+        label.set_xalign(1.0 if sender else 0.0)
+        label.set_text("" if not text else text)
+        set_margin_all(label, 8)
+
+        row = Gtk.ListBoxRow()
+        row.set_child(label)
+        self.listbox.append(row)
+
+        adj = self.listbox.get_adjustment()
+        adj.set_value(adj.get_upper())
+
+        return label
+
+    def add_response_part(self, part):
+        if self.cur_ai_response == None:
+            return
+
+        self.cur_ai_response.set_label(self.cur_ai_response.get_label() + part)
+        
+    def send_message(self, entry, _=None):
+        buffer = entry.get_buffer()
+        text = buffer.get_text()
+        if text == None or text == "":
+            return
+
+        buffer.delete_text(0, -1) # Delete all text
+        self.add_message(text=text)
+        self.cur_ai_response = self.add_message(text=None, sender=False)
+        self.get_application().send_prompt(self.model_dropdown.get_selected_item().get_string(), text)
+        
+class PyLlama(Gtk.Application):
+    def __init__(self):
+        super().__init__(application_id="eur.cfpi-fpsi.pyllama")
+        GLib.set_application_name("PyLlama")
+
+    def do_activate(self):
+        self.client = ollama.Client()
+        self.window = PyLlamaWindow(application=self, title="PyLlama")
+        self.window.present()
+
+    def send_prompt(self, model, text):
+        messages = [{
+            "role": "user",
+            "content": text
+        }]
+
+        for part in self.client.chat(model, messages=messages, stream=True):
+            self.window.add_response_part(part.message.content)
+        
+if __name__ == "__main__":
+    app = PyLlama()
+    app.run()
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..8a597df
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,13 @@
+let
+  pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-25.11") {};
+in pkgs.mkShell {
+  packages = with pkgs; [
+    gtk4
+    gobject-introspection
+    
+    (python3.withPackages (p: with p; [
+      ollama
+      pygobject3
+    ]))
+  ];
+}