diff --git a/Cargo.lock b/Cargo.lock
index 12e35b6..c25ddba 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -104,12 +104,10 @@ dependencies = [
  "atty",
  "bitflags",
  "indexmap",
- "lazy_static",
  "os_str_bytes",
  "strsim",
  "termcolor",
  "textwrap",
- "yaml-rust",
 ]
 
 [[package]]
@@ -443,12 +441,6 @@ version = "0.2.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd8f7255a17a627354f321ef0055d63b898c6fb27eff628af4d1b66b7331edf6"
 
-[[package]]
-name = "linked-hash-map"
-version = "0.5.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
-
 [[package]]
 name = "log"
 version = "0.4.14"
@@ -1132,15 +1124,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "yaml-rust"
-version = "0.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
-dependencies = [
- "linked-hash-map",
-]
-
 [[package]]
 name = "zabbixlaunch"
 version = "1.0.0"
diff --git a/Cargo.toml b/Cargo.toml
index 5976363..6fc2bdb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ repository = "https://git.paulbsd.com/paulbsd/zabbixlaunch"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-clap = { version = "3", features = ["cargo", "yaml"] }
+clap = "3"
 embedded-graphics = { version = "0.7", optional = true }
 launchy = { git = "https://github.com/kangalioo/launchy", branch = "master" }
 reqwest = { version = "0.11", default-features = false, features = ["blocking", "json", "rustls-tls"] }
@@ -19,3 +19,5 @@ nix = "0.23"
 
 [profile.release]
 debug = 0
+lto = true
+codegen-units = 1
diff --git a/src/config/mod.rs b/src/config/mod.rs
index 6233f27..69fe709 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -66,8 +66,9 @@ impl Context {
                     .short('c')
                     .long("config")
                     .value_name("FILE")
-                    .help("Sets a custom config file")
-                    .takes_value(true),
+                    .default_value("/etc/zabbixlaunch/config.json")
+                    .takes_value(true)
+                    .help("Sets a custom config file"),
             )
             .arg(
                 Arg::new("mode")
@@ -75,8 +76,9 @@ impl Context {
                     .long("mode")
                     .value_name("mode")
                     .default_value("draw")
-                    .help("Sets a when running")
-                    .takes_value(true),
+                    .possible_values(&["draw", "test", "input", "effect"])
+                    .takes_value(true)
+                    .help("Sets a when running"),
             )
             .arg(
                 Arg::new("debug")
@@ -138,7 +140,7 @@ impl<'a> Config {
     pub fn load(&'a mut self, configfile: &str) {
         let fileopen: Result<File, std::io::Error>;
         let filemeta = std::fs::metadata(configfile);
-        let mut errorreading = false;
+        let mut error_reading = false;
         let fileexists = match filemeta {
             Ok(_) => true,
             Err(_) => false,
@@ -158,7 +160,7 @@ impl<'a> Config {
         let mut contents = String::new();
         file.read_to_string(&mut contents).unwrap();
         let parse: Result<JsonValue, JsonError> = serde_json::from_str(contents.as_str());
-        let newcfg = match parse {
+        let ncfg = match parse {
             Ok(ncfg) => {
                 let tmpcfg = Config::new();
                 Config {
@@ -190,13 +192,13 @@ impl<'a> Config {
                 }
             }
             Err(err) => {
-                errorreading = true;
+                error_reading = true;
                 println!("error occured: '{}'", err);
                 Config::new()
             }
         };
-        *self = newcfg;
-        if !fileexists || errorreading {
+        *self = ncfg;
+        if !fileexists || error_reading {
             self.save(&configfile);
         }
     }
diff --git a/src/zabbix/api.rs b/src/zabbix/api.rs
index ea70c48..e0c5845 100644
--- a/src/zabbix/api.rs
+++ b/src/zabbix/api.rs
@@ -1,8 +1,8 @@
-use std::time::Duration;
-use std::thread::sleep;
 use crate::config::Config;
 use serde_json::json;
 use serde_json::Value as JsonValue;
+//use std::thread::sleep;
+//use std::time::Duration;
 
 pub const ZABBIX_API_VERSION: &'static str = "2.0";
 pub const ZABBIX_API_ID: i32 = 1;
@@ -36,15 +36,13 @@ pub fn get_zabbix_problems(cfg: &Config) -> Result<JsonValue, reqwest::Error> {
 
     match resp {
         Ok(v) => v.json(),
-        Err(e) => {
-            Err(e)
-        }
+        Err(e) => Err(e),
     }
 }
 
 /// Check if Zabbix is operational
 /// Undefinitely check that Zabbix works
-fn check_zabbix_connection(cfg: &Config) -> bool {
+/*fn check_zabbix_connection(cfg: &Config) -> bool {
     let mut res: bool = false;
     let delay = 5;
     let timeout = 10;
@@ -60,7 +58,7 @@ fn check_zabbix_connection(cfg: &Config) -> bool {
         sleep(Duration::from_secs(delay));
     }
     res
-}
+}*/
 
 /// Build the query that fetchs the token
 fn build_query_auth_token(zabbix_username: &String, zabbix_password: &String) -> JsonValue {
@@ -77,7 +75,7 @@ fn build_query_auth_token(zabbix_username: &String, zabbix_password: &String) ->
 }
 
 /// Build the query that fetchs problems
-fn build_query_problems(zabbix_token: &String, zabbix_limit: i64) -> JsonValue {
+/*fn build_query_problems(zabbix_token: &String, zabbix_limit: i64) -> JsonValue {
     let zabbix_api_function = "problem.get";
     json!({
         "jsonrpc": ZABBIX_API_VERSION,
@@ -97,7 +95,7 @@ fn build_query_problems(zabbix_token: &String, zabbix_limit: i64) -> JsonValue {
         "auth": zabbix_token,
         "id": ZABBIX_API_ID
     })
-}
+}*/
 
 /// Build the query that fetchs triggers
 fn build_query_triggers(zabbix_token: &String) -> JsonValue {
diff --git a/src/zabbix/problems.rs b/src/zabbix/problems.rs
index 3ae11d5..dd1acde 100644
--- a/src/zabbix/problems.rs
+++ b/src/zabbix/problems.rs
@@ -1,14 +1,14 @@
 use serde_json::Value;
 use std::fmt::{Display, Formatter, Result};
 
-#[derive(Debug, Clone)]
+/*#[derive(Debug, Clone)]
 pub enum ZabbixStatus {
     Disaster = 5,
     High = 4,
     Average = 3,
     Warning = 2,
     Info = 1,
-}
+}*/
 
 #[derive(Debug, Clone)]
 pub struct DataMatrix {