diff --git a/core/src/config/mod.rs b/core/src/config/mod.rs
index 6cd818b..10bcd22 100644
--- a/core/src/config/mod.rs
+++ b/core/src/config/mod.rs
@@ -45,9 +45,9 @@ impl TryFrom<PartialConfig> for Config {
     type Error = crate::error::Error;
     fn try_from(value: PartialConfig) -> Result<Self, Self::Error> {
         Ok(Self{
-            rpc: value.rpc.try_into()?,
-            p2p: value.p2p.try_into()?,
-            storage: value.storage.try_into()?
+            rpc: value.rpc.ok_or(crate::error::Error::MissingConfig("rpc"))?.try_into()?,
+            p2p: value.p2p.ok_or(crate::error::Error::MissingConfig("p2p"))?.try_into()?,
+            storage: value.storage.ok_or(crate::error::Error::MissingConfig("storage"))?.try_into()?
         })
     }
 }
@@ -56,19 +56,19 @@ impl TryFrom<PartialConfig> for Config {
 #[derive(Clone, Debug, Deserialize, PartialEq, Serialize)]
 pub struct PartialConfig {
     #[cfg_attr(feature="desktop", command(flatten))]
-    pub p2p: PartialP2pConfig,
+    pub p2p: Option<PartialP2pConfig>,
     #[cfg_attr(feature="desktop", command(flatten))]
-    pub storage: PartialStorageConfig,
+    pub storage: Option<PartialStorageConfig>,
     #[cfg_attr(feature="desktop", command(flatten))]
-    pub rpc: PartialRpcConfig,
+    pub rpc: Option<PartialRpcConfig>,
 }
 
 impl PartialConfig {
     pub fn new() -> Self {
         Self {
-            p2p : PartialP2pConfig::empty().with_new_secret(),
-            storage: PartialStorageConfig::empty(),
-            rpc: PartialRpcConfig::empty(),
+            p2p : Some(PartialP2pConfig::empty().with_new_private_key()),
+            storage: Some(PartialStorageConfig::empty()),
+            rpc: Some(PartialRpcConfig::empty()),
         }
     }
     pub fn from_toml(s: &str) -> Result<Self, toml::de::Error> {
@@ -90,6 +90,12 @@ impl PartialConfig {
     where 
     T: AsRef<Path>
     {
+        if !path.as_ref().exists() {
+            if let Some(x) = path.as_ref().parent() {
+                std::fs::create_dir_all(x)?;
+            };
+            let _ = File::create(&path).await?;
+        }
         let mut file = File::open(path.as_ref()).await?;
         let mut content = String::new();
         file.read_to_string(&mut content).await?;
@@ -113,9 +119,19 @@ impl PartialConfig {
     #[cfg(not(any(target_os="android", target_os="ios")))]
     pub fn default_desktop(app_name: &'static str) -> Self {
         Self {
-            p2p: PartialP2pConfig::default(),
-            rpc: PartialRpcConfig::default(),
-            storage: PartialStorageConfig::default(app_name),
+            p2p: Some(PartialP2pConfig::default()),
+            rpc: Some(PartialRpcConfig::default()),
+            storage: Some(PartialStorageConfig::default(app_name)),
+        }
+    }
+}
+
+impl From<Config> for PartialConfig {
+    fn from(value: Config) -> Self {
+        Self {
+            p2p: Some(value.p2p.into()),
+            storage: Some(value.storage.into()),
+            rpc: Some(value.rpc.into())
         }
     }
 }
@@ -123,9 +139,9 @@ impl PartialConfig {
 impl Emptiable for PartialConfig {
     fn empty() -> Self {
         Self {
-            p2p: PartialP2pConfig::empty(), 
-            storage: PartialStorageConfig::empty(),
-            rpc: PartialRpcConfig::empty()
+            p2p: None, 
+            storage: None,
+            rpc: None,
         }
     }
 
diff --git a/core/src/config/p2p.rs b/core/src/config/p2p.rs
index 9c216f5..9fd0e91 100644
--- a/core/src/config/p2p.rs
+++ b/core/src/config/p2p.rs
@@ -33,14 +33,14 @@ fn base64_to_keypair(base64: &str) -> Result<Keypair, Error>  {
 
 #[derive(Clone, Debug)]
 pub struct P2pConfig {
-    pub secret: Keypair,
+    pub private_key: Keypair,
     pub listen_ips: Vec<IpAddr>,
     pub port: u16,
 }
 
 impl P2pConfig {
     async fn try_into_swarm (self) -> Result<Swarm<p2p::Behaviour>, Error> {
-        let mut swarm = libp2p::SwarmBuilder::with_existing_identity(self.secret)
+        let mut swarm = libp2p::SwarmBuilder::with_existing_identity(self.private_key)
             .with_tokio()
             .with_tcp(
                 tcp::Config::default(),
@@ -74,7 +74,7 @@ impl TryFrom<PartialP2pConfig> for P2pConfig {
     type Error = crate::error::Error;
     fn try_from(raw: PartialP2pConfig) -> Result<P2pConfig, Self::Error> {
         Ok(P2pConfig {
-            secret: base64_to_keypair(&raw.secret.ok_or(Error::MissingConfig("secret"))?)?,
+            private_key: base64_to_keypair(&raw.private_key.ok_or(Error::MissingConfig("secret"))?)?,
             listen_ips: raw.listen_ips.ok_or(Error::MissingConfig("listen_ips"))?,
             port: raw.port.ok_or(Error::MissingConfig("port"))?
         })
@@ -85,23 +85,26 @@ impl TryFrom<PartialP2pConfig> for P2pConfig {
 #[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
 pub struct PartialP2pConfig {
     #[cfg_attr(feature="desktop",arg(long))]
-    pub secret: Option<String>,
+    pub private_key: Option<String>,
     #[cfg_attr(feature="desktop",arg(long))]
     pub listen_ips: Option<Vec<IpAddr>>,
     #[cfg_attr(feature="desktop",arg(long))]
     pub port: Option<u16>,
 }
 impl PartialP2pConfig {
-    pub fn with_new_secret(mut self) -> Self {
-        self.secret = Some(keypair_to_base64(&Keypair::generate_ed25519()));
+    pub fn with_new_private_key(mut self) -> Self {
+        self.private_key = Some(keypair_to_base64(&Keypair::generate_ed25519()));
         self
     }
+    pub fn init_private_key(&mut self) {
+        let _ = self.private_key.insert(keypair_to_base64(&Keypair::generate_ed25519()));
+    }
 }
 
 impl From<P2pConfig> for PartialP2pConfig {
     fn from(config: P2pConfig) -> Self {
         Self {
-            secret: Some(keypair_to_base64(&config.secret)),
+            private_key: Some(keypair_to_base64(&config.private_key)),
             listen_ips: Some(config.listen_ips),
             port: Some(config.port)
         }
@@ -111,7 +114,7 @@ impl From<P2pConfig> for PartialP2pConfig {
 impl Default for PartialP2pConfig {
     fn default() -> Self {
         Self {
-            secret: None,
+            private_key: None,
             listen_ips: Some(Vec::from(DEFAULT_P2P_LISTEN_IPS)),
             port: Some(DEFAULT_P2P_PORT),
         }
@@ -121,21 +124,21 @@ impl Default for PartialP2pConfig {
 impl Emptiable for PartialP2pConfig {
     fn empty() -> Self {
         Self{
-            secret: None,
+            private_key: None,
             listen_ips: None,
             port: None
         }
     }
 
     fn is_empty(&self) -> bool {
-        self.secret.is_none() && self.listen_ips.is_none() && self.port.is_none()
+        self.private_key.is_none() && self.listen_ips.is_none() && self.port.is_none()
     }
 }
 
 impl Mergeable for PartialP2pConfig {
     fn merge(&mut self, mut other: Self) {
-        if let Some(x) = other.secret.take() {
-            let _ = self.secret.insert(x);
+        if let Some(x) = other.private_key.take() {
+            let _ = self.private_key.insert(x);
         };
         if let Some(x) = other.listen_ips.take() {
             let _ = self.listen_ips.insert(x);
@@ -145,6 +148,20 @@ impl Mergeable for PartialP2pConfig {
         };
     }
 }
+impl Mergeable for Option<PartialP2pConfig> {
+    fn merge(&mut self, mut other: Self) {
+        match other.take() {
+            Some(x) => {
+                if let Some(y) = self.as_mut() {
+                    y.merge(x);
+                } else {
+                    let _ = self.insert(x);
+                }
+            },
+            None => {}
+        };
+    }
+}
 
 
 #[cfg(test)]
diff --git a/core/src/config/rpc.rs b/core/src/config/rpc.rs
index 2e390b0..7787348 100644
--- a/core/src/config/rpc.rs
+++ b/core/src/config/rpc.rs
@@ -63,4 +63,19 @@ impl Mergeable for PartialRpcConfig {
             self.socket_path = Some(x);
         }
     }
+}
+
+impl Mergeable for Option<PartialRpcConfig> {
+    fn merge(&mut self, mut other: Self) {
+        match other.take() {
+            Some(x) => {
+                if let Some(y) = self.as_mut() {
+                    y.merge(x);
+                } else {
+                    let _ = self.insert(x);
+                }
+            },
+            None => {}
+        };
+    }
 }
\ No newline at end of file
diff --git a/core/src/config/storage.rs b/core/src/config/storage.rs
index 6b13c8e..62460e1 100644
--- a/core/src/config/storage.rs
+++ b/core/src/config/storage.rs
@@ -108,4 +108,19 @@ impl Mergeable for PartialStorageConfig {
             let _ = self.cache_directory.insert(x);
         };
     }
+}
+
+impl Mergeable for Option<PartialStorageConfig> {
+    fn merge(&mut self, mut other: Self) {
+        match other.take() {
+            Some(x) => {
+                if let Some(y) = self.as_mut() {
+                    y.merge(x);
+                } else {
+                    let _ = self.insert(x);
+                }
+            },
+            None => {}
+        };
+    }
 }
\ No newline at end of file
diff --git a/core/src/global/database_connection.rs b/core/src/global/database_connection.rs
index c622714..eca41ba 100644
--- a/core/src/global/database_connection.rs
+++ b/core/src/global/database_connection.rs
@@ -45,14 +45,14 @@ impl GlobalDatabaseConnections {
     where 
         T: AsRef<StorageConfig>
     {
-        config.as_ref().data_directory.join("data.db")
+        config.as_ref().data_directory.join("data.sqlite")
     }
     
     fn get_cache_file_path<T>(config: &T) -> PathBuf 
     where 
         T: AsRef<StorageConfig>
     {
-        config.as_ref().cache_directory.join("cache.db")
+        config.as_ref().cache_directory.join("cache.sqlite")
     }
 
     fn get_url_unchecked<T>(path: T) -> String
diff --git a/core/src/tests.rs b/core/src/tests.rs
index 29e0624..cefd43c 100644
--- a/core/src/tests.rs
+++ b/core/src/tests.rs
@@ -14,7 +14,7 @@ pub static TEST_CONFIG: LazyLock<Config> = LazyLock::new(|| {
 
 
     Config {
-        p2p: PartialP2pConfig::default().with_new_secret().try_into().unwrap(),
+        p2p: PartialP2pConfig::default().with_new_private_key().try_into().unwrap(),
         storage: StorageConfig {
             data_directory: data_dir,
             cache_directory: cache_dir,
diff --git a/core/src/utils/mergeable.rs b/core/src/utils/mergeable.rs
index 8fb52a6..3a9bfcc 100644
--- a/core/src/utils/mergeable.rs
+++ b/core/src/utils/mergeable.rs
@@ -2,15 +2,4 @@
 pub use caretta_macros::Mergeable;
 pub trait Mergeable: Sized {
     fn merge(&mut self, other: Self);
-}
-
-impl<T> Mergeable for Option<T> {
-    fn merge(&mut self, mut other: Self) {
-        match other.take() {
-            Some(x) => {
-                let _ = self.insert(x);
-            },
-            None => {}
-        };
-    }
 }
\ No newline at end of file
diff --git a/desktop/src/cli/args/config.rs b/desktop/src/cli/args/config.rs
index 90c69f2..f7ea178 100644
--- a/desktop/src/cli/args/config.rs
+++ b/desktop/src/cli/args/config.rs
@@ -3,43 +3,67 @@ use std::{net::IpAddr, path::PathBuf, sync::LazyLock};
 use clap::Args;
 use caretta_core::{
     config::{Config, ConfigError, PartialConfig, PartialP2pConfig, PartialStorageConfig},
-    utils::mergeable::Mergeable
+    utils::{emptiable::Emptiable, mergeable::Mergeable}
 };
 
+use libp2p::identity::Keypair;
 use serde::{Deserialize, Serialize};
+use tokio::sync::OnceCell;
 
 #[derive(Args, Clone, Debug)]
 pub struct ConfigArgs {
     #[arg(short = 'c', long = "config")]
     pub file_path: Option<PathBuf>,
     #[arg(skip)]
-    pub file_content: Option<PartialConfig>,
+    pub file_content: OnceCell<PartialConfig>,
     #[command(flatten)]
     pub args: PartialConfig,
 }
 
 
 impl ConfigArgs {
-    pub fn get_file_path_or_default(&self, app_name: &'static str) -> PathBuf {
+    fn get_file_path_or_default(&self, app_name: &'static str) -> PathBuf {
         self.file_path.clone().unwrap_or(
             dirs::config_local_dir()
-                .unwrap()
+                .expect("Config user directory should be set")
                 .join(app_name)
-                .join(app_name.to_string() + ".conf")
+                .join("config.toml")
         )
     }
-    pub async fn get_or_read_file_content(&mut self, app_name: &'static str) -> PartialConfig {
-        self.file_content.get_or_insert(
-            PartialConfig::read_from(self.get_file_path_or_default(app_name)).await.unwrap()
-        ).clone()
+    async fn get_or_read_file_content(&self, app_name: &'static str) -> PartialConfig {
+        self.file_content.get_or_init(|| async {
+            PartialConfig::read_from(self.get_file_path_or_default(app_name)).await.expect("Config file should be invalid!")
+        }).await.clone()
     }
-    pub async fn into_config_unchecked(mut self, app_name: &'static str) -> Config {
+    pub async fn to_partial_config_with_default(&self, app_name: &'static str) -> PartialConfig {
         let mut default = PartialConfig::default_desktop(app_name);
-        let file_content = self.get_or_read_file_content(app_name).await;
-        let args = self.args;
-        default.merge(file_content);
-        default.merge(args);
-        default.try_into().unwrap()
-
+        default.merge(self.to_partial_config_without_default(app_name).await);
+        default
+    }
+    pub async fn to_partial_config_without_default(&self, app_name: &'static str) -> PartialConfig {
+        let mut file_content = self.get_or_read_file_content(app_name).await;
+        let args = self.args.clone();
+        file_content.merge(args);
+        file_content
+    }
+    async fn has_p2p_private_key(&self, app_name: &'static str) -> bool {
+        let merged = self.to_partial_config_with_default(app_name).await;
+        match merged.p2p {
+            Some(p2p) => p2p.private_key.is_some(),
+            None => false
+        }
+    }
+    pub async fn into_config(mut self, app_name: &'static str) -> Config {
+        if !self.has_p2p_private_key(app_name).await {
+            let path = self.get_file_path_or_default(app_name);
+            let mut content = self.file_content.get_mut().unwrap();
+            if let Some(p2p) = content.p2p.as_mut() {
+                p2p.init_private_key();
+            } else {
+                content.p2p.insert(PartialP2pConfig::empty().with_new_private_key());
+            }
+            content.write_to(path).await.expect("Config file should be writable first time to initialize secret");
+        }
+        self.to_partial_config_with_default(app_name).await.try_into().expect("Some configurations are missing!")
     } 
-}
+}
\ No newline at end of file
diff --git a/desktop/src/cli/config/check.rs b/desktop/src/cli/config/check.rs
index 63c86ed..bd4c94d 100644
--- a/desktop/src/cli/config/check.rs
+++ b/desktop/src/cli/config/check.rs
@@ -10,6 +10,7 @@ pub struct ConfigCheckCommandArgs{
 
 impl Runnable for ConfigCheckCommandArgs {
     async fn run(self, app_name: &'static str) {
-        todo!()
+        let _ = self.config.into_config(app_name).await;
+        println!("Ok");
     }
 }
\ No newline at end of file
diff --git a/desktop/src/cli/config/list.rs b/desktop/src/cli/config/list.rs
index 732836b..5cce721 100644
--- a/desktop/src/cli/config/list.rs
+++ b/desktop/src/cli/config/list.rs
@@ -1,5 +1,5 @@
 use clap::Args;
-use caretta_core::utils::runnable::Runnable;
+use caretta_core::{config::PartialConfig, utils::runnable::Runnable};
 use crate::cli::ConfigArgs;
 
 #[derive(Debug, Args)]
@@ -12,6 +12,12 @@ pub struct ConfigListCommandArgs{
 
 impl Runnable for ConfigListCommandArgs {
     async fn run(self, app_name: &'static str) {
-        todo!()
+        let config: PartialConfig = if self.all {
+            self.config.into_config(app_name).await.into()
+        } else {
+            self.config.to_partial_config_without_default(app_name).await
+        };
+        println!("{}", config.into_toml().unwrap())
+
     }
 }
\ No newline at end of file
diff --git a/examples/core/src/server.rs b/examples/core/src/server.rs
index 8aa5762..25ddf35 100644
--- a/examples/core/src/server.rs
+++ b/examples/core/src/server.rs
@@ -7,7 +7,7 @@ impl ServerTrait for Server {
     where 
         T: AsRef<P2pConfig> 
     {
-        let mut swarm = libp2p::SwarmBuilder::with_existing_identity(config.as_ref().secret.clone())
+        let mut swarm = libp2p::SwarmBuilder::with_existing_identity(config.as_ref().private_key.clone())
             .with_tokio()
             .with_tcp(
                 tcp::Config::default(),
diff --git a/examples/desktop/src/cli/server.rs b/examples/desktop/src/cli/server.rs
index 2cfc5ac..b031b82 100644
--- a/examples/desktop/src/cli/server.rs
+++ b/examples/desktop/src/cli/server.rs
@@ -11,7 +11,7 @@ pub struct ServerCommandArgs {
 }
 impl Runnable for ServerCommandArgs {
     async fn run(self, app_name: &'static str) {
-        let config = CONFIG.get_or_init::<Config>(self.config.into_config_unchecked(app_name).await).await;
+        let config = CONFIG.get_or_init::<Config>(self.config.into_config(app_name).await).await;
 
     }
 }
\ No newline at end of file
diff --git a/examples/desktop/src/main.rs b/examples/desktop/src/main.rs
index 82a3a84..3162608 100644
--- a/examples/desktop/src/main.rs
+++ b/examples/desktop/src/main.rs
@@ -1,3 +1,5 @@
+use caretta::utils::runnable::Runnable;
+use caretta_example_core::global::APP_NAME;
 use clap::Parser;
 
 use crate::cli::Cli;
@@ -8,6 +10,5 @@ mod ipc;
 #[tokio::main]
 async fn main() {
     let args = Cli::parse();
-    
-    
+    args.run(APP_NAME).await;
 }