diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..d74745f
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1 @@
+rust/**/*
\ No newline at end of file
diff --git a/README.md b/README.md
index 9750166..ba0935c 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,8 @@ Arbitrary scripts are not supported by design and that will probably never chang
 - CHUNITHM support
 - segatools as a special package
 - Progress bars and other GUI sugar
-- Rebuilding the profile only when necessary
+- Search bar
+- Start check
 
 ### Endgame
 
diff --git a/bun.lockb b/bun.lockb
index 5341a6b..fedd93f 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index 080e986..eee4311 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
     "@tauri-apps/api": "^2",
     "@tauri-apps/plugin-deep-link": "~2",
     "@tauri-apps/plugin-dialog": "~2",
+    "@tauri-apps/plugin-fs": "~2",
     "@tauri-apps/plugin-opener": "^2",
     "@tauri-apps/plugin-shell": "~2",
     "@trivago/prettier-plugin-sort-imports": "^5.2.2",
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 59a451a..34ac599 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -4341,6 +4341,7 @@ dependencies = [
  "tauri-build",
  "tauri-plugin-deep-link",
  "tauri-plugin-dialog",
+ "tauri-plugin-fs",
  "tauri-plugin-opener",
  "tauri-plugin-shell",
  "tauri-plugin-single-instance",
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index eefb433..56ea852 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -39,6 +39,7 @@ async-std = "1.13.0"
 closure = "0.3.0"
 derive_more = { version = "2.0.1", features = ["display"] }
 junction = "1.2.0"
+tauri-plugin-fs = "2"
 
 [target.'cfg(not(any(target_os = "android", target_os = "ios")))'.dependencies]
 tauri-plugin-single-instance = { version = "2", features = ["deep-link"] }
diff --git a/rust/capabilities/default.json b/rust/capabilities/default.json
index 845bdc1..e4502f7 100644
--- a/rust/capabilities/default.json
+++ b/rust/capabilities/default.json
@@ -1,20 +1,18 @@
 {
-  "$schema": "../gen/schemas/desktop-schema.json",
-  "identifier": "default",
-  "description": "Capability for the main window",
-  "windows": [
-    "main"
-  ],
-  "permissions": [
-    "core:default",
-    "opener:default",
-    "core:window:allow-close",
-    "core:app:allow-app-hide",
-    "shell:default",
-    "shell:default",
-    "opener:default",
-    "dialog:default",
-    "dialog:default",
-    "deep-link:default"
-  ]
-}
\ No newline at end of file
+    "$schema": "../gen/schemas/desktop-schema.json",
+    "identifier": "default",
+    "description": "Capability for the main window",
+    "windows": ["main"],
+    "permissions": [
+        "core:default",
+        "opener:default",
+        "core:window:allow-close",
+        "core:app:allow-app-hide",
+        "shell:default",
+        "dialog:default",
+        "deep-link:default",
+        "fs:default",
+        "fs:allow-data-read-recursive",
+        "fs:allow-data-write-recursive"
+    ]
+}
diff --git a/rust/src/appdata.rs b/rust/src/appdata.rs
index 616dfea..ab5471a 100644
--- a/rust/src/appdata.rs
+++ b/rust/src/appdata.rs
@@ -1,11 +1,13 @@
-use anyhow::{anyhow, Result};
+use std::hash::{DefaultHasher, Hash, Hasher};
+
 use crate::pkg::PkgKey;
-use crate::Profile;
 use crate::pkg_store::PackageStore;
+use crate::Profile;
+use anyhow::{anyhow, Result};
 
 pub struct AppData {
     pub profile: Option<Profile>,
-    pub pkgs: PackageStore
+    pub pkgs: PackageStore,
 }
 
 impl AppData {
@@ -37,4 +39,14 @@ impl AppData {
 
         Ok(())
     }
-}
\ No newline at end of file
+
+    pub fn sum_packages(&self, p: &Profile) -> String {
+        let mut hasher = DefaultHasher::new();
+        for pkg in &p.mods {
+            let x = self.pkgs.get(pkg).unwrap().loc.as_ref().unwrap();
+            pkg.hash(&mut hasher);
+            x.version.hash(&mut hasher);
+        }
+        hasher.finish().to_string()
+    }
+}
diff --git a/rust/src/cmd.rs b/rust/src/cmd.rs
index a24abcf..9816309 100644
--- a/rust/src/cmd.rs
+++ b/rust/src/cmd.rs
@@ -20,16 +20,24 @@ pub async fn startline(app: AppHandle) -> Result<(), String> {
     let appd = state.lock().await;
 
     if let Some(p) = &appd.profile {
-        // TODO if p.needsUpdate
-        liner::line_up(p).await.expect("Line-up failed");
+        let hash = appd.sum_packages(p);
+        liner::line_up(p, hash).await
+            .map_err(|e| e.to_string())?;
         start::start(p, app_copy)
-            .map_err(|e| { log::error!("Error launching: {}", e.to_string()); e.to_string() })
-        //Ok(())
+            .map_err(|e| e.to_string())
     } else {
         Err("No profile".to_owned())
     }
 }
 
+#[tauri::command]
+pub async fn kill() -> Result<(), String> {
+    start::pkill("amdaemon.exe").await;
+    // The start routine will kill the other process
+
+    Ok(())
+}
+
 #[tauri::command]
 pub async fn install_package(state: State<'_, tokio::sync::Mutex<AppData>>, key: PkgKey) -> Result<InstallResult, String> {
     log::debug!("invoke: install_package({})", key);
diff --git a/rust/src/lib.rs b/rust/src/lib.rs
index 783b3a5..9965a77 100644
--- a/rust/src/lib.rs
+++ b/rust/src/lib.rs
@@ -107,7 +107,8 @@ pub async fn run(_args: Vec<String>) {
             cmd::init_profile,
             cmd::save_profile,
             cmd::startline,
-            cmd::set_cfg
+            cmd::kill,
+            cmd::set_cfg,
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");
diff --git a/rust/src/liner.rs b/rust/src/liner.rs
index e23d5fd..991add5 100644
--- a/rust/src/liner.rs
+++ b/rust/src/liner.rs
@@ -17,9 +17,23 @@ async fn symlink(src: impl AsRef<Path>, dst: impl AsRef<Path>) -> std::io::Resul
     junction::create(src, dst)
 }
 
-pub async fn line_up(p: &Profile) -> Result<()> {
-    let dir_out = util::profile_dir(&p);
-    log::info!("Preparing {}", dir_out.to_string_lossy());
+pub async fn line_up(p: &Profile, pkg_hash: String) -> Result<()> {
+    let hash_path = p.dir().join(".sl-state");
+    let prev_hash = fs::read_to_string(&hash_path).await.unwrap_or_default();
+    if prev_hash != pkg_hash {
+        log::debug!("state {} -> {}", prev_hash, pkg_hash);
+        fs::write(hash_path, pkg_hash).await
+            .map_err(|e| anyhow!("Unable to write the state file: {}", e))?;
+        prepare_packages(p).await?;
+    }
+
+    prepare_config(p).await?;
+
+    Ok(())
+}
+
+async fn prepare_packages(p: &Profile) -> Result<()> {
+    let dir_out = p.dir();
 
     let mut futures = JoinSet::new();
     if dir_out.join("BepInEx").exists() {
@@ -34,25 +48,29 @@ pub async fn line_up(p: &Profile) -> Result<()> {
 
     for m in &p.mods {
         log::debug!("Preparing {}", m);
-        let dir_out = util::profile_dir(&p);
         let (namespace, name) = m.0.split_at(m.0.find("-").expect("Invalid mod definition"));
-        let bpx = util::pkg_dir_of(namespace, &name[1..])
+        let bpx_dir = util::pkg_dir_of(namespace, &name[1..])
             .join("app")
             .join("BepInEx");
-        if bpx.exists() {
-            util::copy_recursive(&bpx, &dir_out.join("BepInEx"))?;
+        if bpx_dir.exists() {
+            util::copy_recursive(&bpx_dir, &dir_out.join("BepInEx"))?;
         }
 
-        let opt = util::pkg_dir_of(namespace, &name[1..]).join("option");
-        if opt.exists() {
-            let x = opt.read_dir().unwrap().next().unwrap()?;
+        let opt_dir = util::pkg_dir_of(namespace, &name[1..]).join("option");
+        if opt_dir.exists() {
+            let x = opt_dir.read_dir().unwrap().next().unwrap()?;
             if x.metadata()?.is_dir() {
                 symlink(&x.path(), &dir_out.join("option").join(x.file_name())).await?;
             }
         }
     }
 
-    // Todo temporary
+    Ok(())
+}
+
+pub async fn prepare_config(p: &Profile) -> Result<()> {
+    let dir_out = p.dir();
+
     let ini_in_raw = fs::read_to_string(p.exe_dir.join("segatools.ini")).await?;
     let ini_in = Ini::load_from_str(&ini_in_raw)?;
     let mut opt_dir_in = PathBuf::from(
@@ -78,7 +96,7 @@ pub async fn line_up(p: &Profile) -> Result<()> {
             util::path_to_str(dir_out.join("BepInEx").join("core").join("BepInEx.Preloader.dll"))?
         );
 
-    if prepare_aime(p).await.unwrap_or(false) {
+    if p.get_bool("aime", false) {
         ini_out.with_section(Some("aime"))
             .set("enable", "1")
             .set("aimePath", util::path_to_str(dir_out.join("aime.txt"))?);
@@ -93,16 +111,4 @@ pub async fn line_up(p: &Profile) -> Result<()> {
     }
 
     Ok(())
-}
-
-// Todo multiple codes
-async fn prepare_aime(p: &Profile) -> Result<bool> {
-    if p.get_bool("aime", true) {
-        if let Some(code) = p.cfg.get("aime-code") {
-            let code = code.as_str().expect("Invalid config");
-            fs::write(util::profile_dir(&p).join("aime.txt"), code).await?;
-            return Ok(true);
-        }
-    }
-    Ok(false)
 }
\ No newline at end of file
diff --git a/rust/src/pkg.rs b/rust/src/pkg.rs
index 7d72cde..0c78af5 100644
--- a/rust/src/pkg.rs
+++ b/rust/src/pkg.rs
@@ -6,7 +6,7 @@ use tokio::fs;
 use crate::{model::{local, rainy}, util};
 
 // {namespace}-{name}
-#[derive(Eq, Hash, PartialEq, Clone, Serialize, Deserialize, Display)]
+#[derive(Eq, Hash, PartialEq, PartialOrd, Ord, Clone, Serialize, Deserialize, Display)]
 pub struct PkgKey(pub String);
 
 // {namespace}-{name}-{version}
diff --git a/rust/src/profile.rs b/rust/src/profile.rs
index a55d3c2..8318220 100644
--- a/rust/src/profile.rs
+++ b/rust/src/profile.rs
@@ -1,4 +1,5 @@
-use std::{collections::{HashMap, HashSet}, path::PathBuf};
+use anyhow::Result;
+use std::{collections::{BTreeSet, HashMap}, path::PathBuf};
 use crate::{model::misc, pkg::PkgKey, util};
 use serde::{Deserialize, Serialize};
 use tokio::fs;
@@ -11,7 +12,7 @@ pub struct Profile {
     pub game: misc::Game,
     pub exe_dir: PathBuf,
     pub name: String,
-    pub mods: HashSet<PkgKey>,
+    pub mods: BTreeSet<PkgKey>,
     pub wine_runtime: Option<PathBuf>,
     pub wine_prefix: Option<PathBuf>,
     // cfg is temporarily just a map to make iteration easier
@@ -25,7 +26,7 @@ impl Profile {
             game: misc::Game::Ongeki,
             exe_dir: exe_path.parent().unwrap().to_owned(),
             name: "ongeki-default".to_owned(),
-            mods: HashSet::new(),
+            mods: BTreeSet::new(),
 
             #[cfg(target_os = "linux")]
             wine_runtime: Some(std::path::Path::new("/usr/bin/wine").to_path_buf()),
@@ -45,6 +46,13 @@ impl Profile {
         }
     }
 
+    pub fn dir(&self) -> PathBuf {
+        util::get_dirs()
+            .data_dir()
+            .join("profile-".to_owned() + &self.name)
+            .to_owned()
+    }
+
     pub fn load() -> Option<Profile> {
         let path = util::get_dirs()
             .config_dir()
@@ -65,6 +73,11 @@ impl Profile {
         log::info!("Written to {}", path.to_string_lossy());
     }
 
+    pub fn get_cfg(&self, key: &str) -> Result<&serde_json::Value> {
+        self.cfg.get(key)
+            .ok_or_else(|| anyhow::anyhow!("Invalid config entry {}", key))
+    }
+
     pub fn get_bool(&self, key: &str, default: bool) -> bool {
         self.cfg.get(key)
             .and_then(|c| c.as_bool())
diff --git a/rust/src/start.rs b/rust/src/start.rs
index f9f1665..65be205 100644
--- a/rust/src/start.rs
+++ b/rust/src/start.rs
@@ -1,50 +1,40 @@
 use anyhow::Result;
+use std::fs::File;
 use tokio::process::Command;
 use tauri::{AppHandle, Emitter};
+use std::process::Stdio;
 use crate::profile::Profile;
 use crate::util;
 
-#[cfg(target_os = "linux")]
-pub fn start(p: &Profile, app: AppHandle) -> Result<()> {
-    let p = p.clone();
-    tauri::async_runtime::spawn(async move {
-        let rv = Command::new(p.wine_runtime.as_ref().unwrap())
-            .env(
-                "SEGATOOLS_CONFIG_PATH",
-                util::profile_dir(&p).join("segatools.ini"),
-            )
-            .env("WINEPREFIX", p.wine_prefix.as_ref().unwrap())
-            .arg(p.exe_dir.join("start.bat"))
-            .spawn();
-        match rv {
-            Ok(mut child) => {
-                _ = child.wait().await;
-                log::debug!("Fin");
-            },
-            Err(e) => {
-                log::error!("Fail: {}", e);
-            }
-        }
-        _ = app.emit("launch-end", "");
-    });
-
-    Ok(())
-}
-
 #[cfg(target_os = "windows")]
+static CREATE_NO_WINDOW: i32 = 0x08000000;
+
 pub fn start(p: &Profile, app: AppHandle) -> Result<()> {
-    use std::process::Stdio;
     use tokio::task::JoinSet;
 
-    let create_no_window = 0x08000000;
-
-    let ini_path = util::profile_dir(&p).join("segatools.ini");
+    let ini_path = p.dir().join("segatools.ini");
 
     log::debug!("With path {}", ini_path.to_string_lossy());
-    log::info!("Launching amdaemon");
 
-    let mut amd_builder = Command::new("cmd.exe");
-    let mut game_builder = Command::new(p.exe_dir.join("inject.exe"));
+    let mut game_builder;
+    let mut amd_builder;
+
+    #[cfg(target_os = "windows")]
+    {
+        game_builder = Command::new(p.exe_dir.join("inject.exe"));
+        amd_builder = Command::new("cmd.exe");
+    }
+    #[cfg(target_os = "linux")]
+    {
+        let wine = p.wine_runtime.as_ref()
+            .expect("No wine path specified");
+
+        game_builder = Command::new(wine);
+        amd_builder = Command::new(wine);
+
+        game_builder.arg(p.exe_dir.join("inject.exe"));
+        amd_builder.arg("cmd.exe");
+    }
 
     let display_mode = p.get_str("display-mode", "borderless");
 
@@ -76,24 +66,38 @@ pub fn start(p: &Profile, app: AppHandle) -> Result<()> {
         game_builder.arg("-popupwindow");
     }
 
-    if !cfg!(debug_assertions) {
-        amd_builder
-            .creation_flags(create_no_window)
-            // Obviously, this is a meme
-            // Output will be handled properly at a later time
-            .stdout(Stdio::null())
-            .stderr(Stdio::null());
+    #[cfg(target_os = "linux")]
+    {
+        let wineprefix = p.wine_prefix.as_ref()
+            .expect("No wineprefix specified");
+        amd_builder.env("WINEPREFIX", wineprefix);
+        game_builder.env("WINEPREFIX", wineprefix);
+    }
 
-        game_builder
-            .creation_flags(create_no_window)
-            .stdout(Stdio::null())
-            .stderr(Stdio::null());
+
+    let amd_log = File::create(p.dir().join("amdaemon.log"))?;
+    let game_log = File::create(p.dir().join("mu3.log"))?;
+
+    amd_builder
+        .stdout(Stdio::from(amd_log));
+        // do they use stderr?
+
+    game_builder
+        .stdout(Stdio::from(game_log));
+
+    #[cfg(target_os = "windows")]
+    {
+        amd_builder.creation_flags(CREATE_NO_WINDOW);
+        game_builder.creation_flags(CREATE_NO_WINDOW);
     }
 
     if p.get_bool("intel", false) == true {
         amd_builder.env("OPENSSL_ia32cap", ":~0x20000000");
     }
 
+    log::info!("Launching amdaemon: {:?}", amd_builder);
+    log::info!("Launching mu3: {:?}", game_builder);
+
     let mut amd = amd_builder.spawn()?;
     let mut game = game_builder.spawn()?;
 
@@ -101,19 +105,24 @@ pub fn start(p: &Profile, app: AppHandle) -> Result<()> {
         let mut set = JoinSet::new();
 
         set.spawn(async move {
-            amd.wait().await.expect("amdaemon failed to run")
+            (amd.wait().await.expect("amdaemon failed to run"), "amdaemon.exe")
         });
 
         set.spawn(async move {
-            game.wait().await.expect("mu3 failed to run")
+            (game.wait().await.expect("mu3 failed to run"), "mu3.exe")
         });
 
-        let res = set.join_next().await.expect("No spawn").expect("No result");
+        _ = app.emit("launch-start", "");
 
-        log::info!("One of the processes died with return code {}", res);
+        let (rc, process_name) = set.join_next().await.expect("No spawn").expect("No result");
 
-        _ = Command::new("taskkill.exe").arg("/f").arg("/im").arg("amdaemon.exe").creation_flags(create_no_window).output().await;
-        _ = Command::new("taskkill.exe").arg("/f").arg("/im").arg("mu3.exe").creation_flags(create_no_window).output().await;
+        log::info!("{} died with return code {}", process_name, rc);
+
+        if process_name == "amdaemon.exe" {
+            pkill("mu3.exe").await;
+        } else {
+            pkill("amdaemon.exe").await;
+        }
 
         set.join_next().await.expect("No spawn").expect("No result");
 
@@ -123,4 +132,16 @@ pub fn start(p: &Profile, app: AppHandle) -> Result<()> {
     });
 
     Ok(())
+}
+
+#[cfg(target_os = "windows")]
+pub async fn pkill(process_name: &str) {
+    _ = Command::new("taskkill.exe").arg("/f").arg("/im").arg(process_name)
+        .creation_flags(CREATE_NO_WINDOW).output().await;
+}
+
+#[cfg(target_os = "linux")]
+pub async fn pkill(process_name: &str) {
+    _ = Command::new("pkill").arg(process_name)
+        .output().await;
 }
\ No newline at end of file
diff --git a/rust/src/util.rs b/rust/src/util.rs
index 9a5b341..1dae268 100644
--- a/rust/src/util.rs
+++ b/rust/src/util.rs
@@ -2,8 +2,6 @@ use anyhow::{anyhow, Result};
 use directories::ProjectDirs;
 use std::path::{Path, PathBuf};
 
-use crate::profile::Profile;
-
 pub fn get_dirs() -> ProjectDirs {
     ProjectDirs::from("org", "7EVENDAYSHOLIDAYS", "STARTLINER")
         .expect("Unable to set up config directories")
@@ -21,13 +19,6 @@ pub fn pkg_dir_of(namespace: &str, name: &str) -> PathBuf {
     pkg_dir().join(format!("{}-{}", namespace, name)).to_owned()
 }
 
-pub fn profile_dir(p: &Profile) -> PathBuf {
-    get_dirs()
-        .data_dir()
-        .join("profile-".to_owned() + &p.name)
-        .to_owned()
-}
-
 pub fn cache_dir() -> PathBuf {
     get_dirs().cache_dir().to_owned()
 }
diff --git a/src/components/App.vue b/src/components/App.vue
index 13486b7..f1e0143 100644
--- a/src/components/App.vue
+++ b/src/components/App.vue
@@ -6,13 +6,12 @@ import TabList from 'primevue/tablist';
 import TabPanel from 'primevue/tabpanel';
 import TabPanels from 'primevue/tabpanels';
 import Tabs from 'primevue/tabs';
-import { invoke } from '@tauri-apps/api/core';
-import { listen } from '@tauri-apps/api/event';
 import { onOpenUrl } from '@tauri-apps/plugin-deep-link';
 import { open } from '@tauri-apps/plugin-dialog';
 import ModList from './ModList.vue';
 import ModStore from './ModStore.vue';
 import Options from './Options.vue';
+import StartButton from './StartButton.vue';
 import { usePkgStore } from '../stores';
 import { changePrimaryColor } from '../util';
 
@@ -20,7 +19,6 @@ const store = usePkgStore();
 store.setupListeners();
 
 const currentTab = ref('3');
-const startEnabled = ref(false);
 
 const loadProfile = async (openWindow: boolean) => {
     await store.reloadProfile();
@@ -42,7 +40,6 @@ const loadProfile = async (openWindow: boolean) => {
     }
     if (store.profile !== null) {
         changePrimaryColor(store.profile.game);
-        startEnabled.value = true;
         currentTab.value = '0';
     }
 
@@ -51,11 +48,6 @@ const loadProfile = async (openWindow: boolean) => {
 
 const isProfileDisabled = computed(() => store.profile === null);
 
-const startline = async () => {
-    startEnabled.value = false;
-    await invoke('startline');
-};
-
 onOpenUrl((urls) => {
     console.log('deep link:', urls);
 });
@@ -63,10 +55,6 @@ onOpenUrl((urls) => {
 onMounted(async () => {
     await loadProfile(false);
 });
-
-listen('launch-end', () => {
-    startEnabled.value = true;
-});
 </script>
 
 <template>
@@ -87,15 +75,7 @@ listen('launch-end', () => {
                         ><div class="pi pi-question-circle"></div
                     ></Tab>
                     <div class="grow"></div>
-                    <Button
-                        :disabled="!startEnabled"
-                        icon="pi pi-play"
-                        label="START"
-                        aria-label="start"
-                        size="small"
-                        class="m-2.5"
-                        @click="startline()"
-                    />
+                    <StartButton />
                 </TabList>
             </div>
             <TabPanels class="w-full grow mt-[3rem]">
diff --git a/src/components/Options.vue b/src/components/Options.vue
index e50be30..e4bd838 100644
--- a/src/components/Options.vue
+++ b/src/components/Options.vue
@@ -1,10 +1,12 @@
 <script setup lang="ts">
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import Fieldset from 'primevue/fieldset';
 import InputNumber from 'primevue/inputnumber';
 import InputText from 'primevue/inputtext';
 import RadioButton from 'primevue/radiobutton';
 import Toggle from 'primevue/toggleswitch';
+import * as path from '@tauri-apps/api/path';
+import { readTextFile, writeTextFile } from '@tauri-apps/plugin-fs';
 import { usePkgStore } from '../stores';
 
 const store = usePkgStore();
@@ -23,7 +25,32 @@ const cfgRezW = _cfg('rez-w', 1080);
 const cfgRezH = _cfg('rez-h', 1920);
 const cfgDisplayMode = _cfg('display-mode', 'borderless');
 const cfgAime = _cfg('aime', false);
-const cfgAimeCode = _cfg('aime-code', '');
+
+const aimeCode = ref('');
+// temp
+let aimePath = '';
+
+(async () => {
+    aimePath = await path.join(
+        await path.dataDir(),
+        'startliner/profile-ongeki-default/aime.txt'
+    );
+    aimeCode.value = await readTextFile(aimePath);
+})();
+
+path.homeDir().then(console.log);
+
+const aimeCodeModel = computed({
+    get() {
+        return aimeCode.value;
+    },
+    async set(value: string) {
+        aimeCode.value = value;
+        if (value.match(/^[0-9]{20}$/)) {
+            await writeTextFile(aimePath, aimeCode.value);
+        }
+    },
+});
 </script>
 
 <template>
@@ -98,13 +125,9 @@ const cfgAimeCode = _cfg('aime-code', '');
                     class="shrink"
                     size="small"
                     :disabled="store.cfg('aime') !== true"
-                    :invalid="
-                        store.cfg('aime') === true &&
-                        store.cfg('aime-code')?.toString().length !== 20
-                    "
                     :maxlength="20"
                     placeholder="00000000000000000000"
-                    v-model="cfgAimeCode"
+                    v-model="aimeCodeModel"
                 />
             </label>
         </div>
diff --git a/src/components/StartButton.vue b/src/components/StartButton.vue
new file mode 100644
index 0000000..157ab0c
--- /dev/null
+++ b/src/components/StartButton.vue
@@ -0,0 +1,59 @@
+<script setup lang="ts">
+import { Ref, ref } from 'vue';
+import Button from 'primevue/button';
+import { invoke } from '@tauri-apps/api/core';
+import { listen } from '@tauri-apps/api/event';
+
+type StartStatus = 'ready' | 'preparing' | 'running';
+const startStatus: Ref<StartStatus> = ref('ready');
+
+const startline = async () => {
+    startStatus.value = 'preparing';
+    await invoke('startline');
+};
+
+const kill = async () => {
+    await invoke('kill');
+    startStatus.value = 'ready';
+};
+
+listen('launch-start', () => {
+    startStatus.value = 'running';
+});
+
+listen('launch-end', () => {
+    startStatus.value = 'ready';
+});
+</script>
+
+<template>
+    <Button
+        v-if="startStatus === 'ready'"
+        :disabled="false"
+        icon="pi pi-play"
+        label="START"
+        aria-label="start"
+        size="small"
+        class="m-2.5"
+        @click="startline()"
+    />
+    <Button
+        v-else-if="startStatus === 'preparing'"
+        disabled
+        icon="pi pi-spin pi-spinner"
+        label="START"
+        aria-label="start"
+        size="small"
+        class="m-2.5"
+    />
+    <Button
+        v-else
+        :disabled="false"
+        icon="pi pi-ban"
+        label="STOP"
+        aria-label="stop"
+        size="small"
+        class="m-2.5"
+        @click="kill()"
+    />
+</template>