diff --git a/bin/map/src/id_list.rs b/bin/map/src/id_list.rs
index 43333d233..87e27fe1d 100644
--- a/bin/map/src/id_list.rs
+++ b/bin/map/src/id_list.rs
@@ -5,6 +5,7 @@ use tui::widgets::ListState;
 #[derive(Clone)]
 pub struct IdList {
     pub state: ListState,
+    // todo: mutex
     pub node_id: Vec<String>,
 }
 
diff --git a/bin/map/src/lib.rs b/bin/map/src/lib.rs
index 8bb213488..f2031c668 100644
--- a/bin/map/src/lib.rs
+++ b/bin/map/src/lib.rs
@@ -1,9 +1,9 @@
-pub mod app;
 pub mod id_list;
 pub mod info_list;
+pub mod model;
 pub mod node_info;
 pub mod types;
 pub mod ui;
 
-pub use app::App;
+pub use model::Model;
 pub use ui::ui;
diff --git a/bin/map/src/main.rs b/bin/map/src/main.rs
index 27fb96d45..2fe9e9eaf 100644
--- a/bin/map/src/main.rs
+++ b/bin/map/src/main.rs
@@ -16,7 +16,7 @@ use tui::{
     Terminal,
 };
 
-use map::{id_list::IdList, info_list::InfoList, node_info::NodeInfo, ui, App};
+use map::{id_list::IdList, info_list::InfoList, node_info::NodeInfo, ui, Model};
 
 struct Map {
     url: String,
@@ -119,8 +119,8 @@ async fn main() -> Result<()> {
 
     let id_list = IdList::new(ids);
 
-    //let app = Arc::new(App::new(id_list, info_list));
-    let app = App::new(id_list, info_list);
+    //let app = Arc::new(Model::new(id_list, info_list));
+    let app = Model::new(id_list, info_list);
 
     let nthreads = num_cpus::get();
     let (signal, shutdown) = async_channel::unbounded::<()>();
@@ -143,7 +143,7 @@ async fn main() -> Result<()> {
     result
 }
 
-async fn run_rpc(ex: Arc<Executor<'_>>, app: App) -> Result<()> {
+async fn run_rpc(ex: Arc<Executor<'_>>, app: Model) -> Result<()> {
     let client = Map::new("tcp://127.0.0.1:8000".to_string());
 
     ex.spawn(poll(client, app)).detach();
@@ -151,7 +151,7 @@ async fn run_rpc(ex: Arc<Executor<'_>>, app: App) -> Result<()> {
     Ok(())
 }
 
-async fn poll(client: Map, _app: App) -> Result<()> {
+async fn poll(client: Map, _app: Model) -> Result<()> {
     loop {
         let reply = client.get_info().await?;
 
@@ -179,7 +179,7 @@ async fn poll(client: Map, _app: App) -> Result<()> {
     }
 }
 
-async fn run_app<B: Backend>(terminal: &mut Terminal<B>, mut app: App) -> io::Result<()> {
+async fn run_app<B: Backend>(terminal: &mut Terminal<B>, mut app: Model) -> io::Result<()> {
     let mut asi = async_stdin();
 
     terminal.clear()?;
diff --git a/bin/map/src/app.rs b/bin/map/src/model.rs
similarity index 78%
rename from bin/map/src/app.rs
rename to bin/map/src/model.rs
index 7c7b64898..77d9e33d3 100644
--- a/bin/map/src/app.rs
+++ b/bin/map/src/model.rs
@@ -8,19 +8,19 @@ use crate::{id_list::IdList, info_list::InfoList, node_info::NodeInfo};
 // arc reference
 
 #[derive(Clone)]
-pub struct App {
+pub struct Model {
     pub id_list: IdList,
     pub info_list: InfoList,
 }
 
-impl App {
-    pub fn new(id_list: IdList, info_list: InfoList) -> App {
+impl Model {
+    pub fn new(id_list: IdList, info_list: InfoList) -> Model {
         //let infos = Vec::new();
         //let ids = Vec::new();
 
         //let info_list = InfoList::new(infos);
         //let id_list = IdList::new(ids);
-        App { id_list, info_list }
+        Model { id_list, info_list }
     }
 
     // TODO: implement this
@@ -28,7 +28,7 @@ impl App {
     //    Timer::after(dur).await;
     //}
 
-    pub async fn update(mut self, node_vec: Vec<NodeInfo>) -> App {
+    pub async fn update(mut self, node_vec: Vec<NodeInfo>) -> Model {
         let ids = vec![node_vec[0].id.clone()];
 
         for id in ids {
@@ -42,11 +42,11 @@ impl App {
         }
         let info_list = self.info_list;
 
-        App { id_list, info_list }
+        Model { id_list, info_list }
     }
 }
 
-//impl Default for App {
+//impl Default for Model {
 //    fn default() -> Self {
 //        Self::new()
 //    }
diff --git a/bin/map/src/ui.rs b/bin/map/src/ui.rs
index 1d16b182c..31607613e 100644
--- a/bin/map/src/ui.rs
+++ b/bin/map/src/ui.rs
@@ -1,4 +1,4 @@
-use crate::app::App;
+use crate::model::Model;
 use async_std::sync::{Arc, Mutex};
 use tui::{
     backend::Backend,
@@ -9,7 +9,7 @@ use tui::{
     Frame,
 };
 
-pub fn ui<B: Backend>(f: &mut Frame<'_, B>, mut app: App) {
+pub fn ui<B: Backend>(f: &mut Frame<'_, B>, mut app: Model) {
     let slice = Layout::default()
         .direction(Direction::Horizontal)
         .margin(2)
@@ -30,6 +30,7 @@ pub fn ui<B: Backend>(f: &mut Frame<'_, B>, mut app: App) {
         .block(Block::default().borders(Borders::ALL))
         .highlight_style(Style::default().fg(Color::LightCyan).add_modifier(Modifier::BOLD));
 
+    // needs to be mutable. could
     f.render_stateful_widget(nodes, slice[0], &mut app.id_list.state);
 
     let index = app.info_list.index;
@@ -37,7 +38,7 @@ pub fn ui<B: Backend>(f: &mut Frame<'_, B>, mut app: App) {
     render_info(app, f, index, slice);
 }
 
-fn render_info<B: Backend>(app: App, f: &mut Frame<'_, B>, index: usize, slice: Vec<Rect>) {
+fn render_info<B: Backend>(app: Model, f: &mut Frame<'_, B>, index: usize, slice: Vec<Rect>) {
     let info = &app.info_list.infos;
     let id = &info[index].id;
     let connections = info[index].connections;