diff --git a/harmony-rs/opnsense-config/src/config.rs b/harmony-rs/opnsense-config/src/config.rs
index 6d26b65..79829c6 100644
--- a/harmony-rs/opnsense-config/src/config.rs
+++ b/harmony-rs/opnsense-config/src/config.rs
@@ -181,11 +181,20 @@ mod tests {
         let config_file_path = test_file_path.to_str().unwrap().to_string();
         println!("File path {config_file_path}");
         let repository = Box::new(LocalFileConfigRepository::new(config_file_path));
+        let config_file_str = repository.load().await.unwrap();
         let config = Config::new(repository)
             .await
             .expect("Failed to load config");
 
         println!("Config {:?}", config);
-        assert!(false);
+
+        let yaserde_cfg = yaserde::ser::Config { perform_indent: true,
+        .. Default::default()
+        };
+        let serialized = yaserde::ser::to_string_with_config(&config.opnsense, &yaserde_cfg).unwrap();
+
+        fs::write("/tmp/serialized.xml", &serialized).unwrap();
+        assert_eq!(config_file_str, serialized);
     }
+
 }
diff --git a/harmony-rs/opnsense-config/src/infra/generic_xml.rs b/harmony-rs/opnsense-config/src/infra/generic_xml.rs
new file mode 100644
index 0000000..6e1d1a5
--- /dev/null
+++ b/harmony-rs/opnsense-config/src/infra/generic_xml.rs
@@ -0,0 +1,249 @@
+use xml::reader::{EventReader, XmlEvent as ReadEvent};
+use xml::writer::{EventWriter, XmlEvent as WriteEvent};
+use yaserde::{ser, YaDeserialize as YaDeserializeTrait, YaSerialize as YaSerializeTrait};
+use yaserde_derive::{YaDeserialize, YaSerialize};
+
+#[derive(Debug, PartialEq, Default, YaDeserialize)]
+pub struct Parent {
+    //    pub rawxml_child: RawXml,
+    pub string_child: String,
+    pub child_child: Child,
+}
+
+#[derive(Debug, PartialEq, Default, YaDeserialize)]
+pub struct Child {
+    pub child_val: String,
+    pub child_val2: String,
+    pub child_option: Option<String>,
+}
+
+#[derive(Debug, PartialEq, Default)]
+pub struct RawXml(String);
+
+impl YaDeserializeTrait for RawXml {
+    fn deserialize<R: std::io::Read>(
+        reader: &mut yaserde::de::Deserializer<R>,
+    ) -> Result<Self, String> {
+        let mut buffer = String::new();
+        let mut depth = 0;
+
+        let own_name = match reader.peek()? {
+            ReadEvent::StartElement { name, .. } => name.local_name.clone(),
+            _ => return Err("RawXml Should start deserializing with StartElement".to_string()),
+        };
+        println!("RawXml deserialize from root element name : {own_name}");
+        loop {
+            let current_event = reader.peek()?.to_owned();
+            match current_event.clone() {
+                ReadEvent::StartElement {
+                    name, attributes, ..
+                } => {
+                    println!("StartElement {name} depth {depth}");
+                    depth += 1;
+                    let mut attr_string = String::new();
+                    attributes.iter().for_each(|a| {
+                        attr_string.push_str(&format!(r#" {}="{}""#, &a.name, &a.value));
+                    });
+                    buffer.push_str(&format!("<{}{}>", name, attr_string));
+                    let _event = reader.next_event()?;
+                }
+                ReadEvent::EndElement { name } => {
+                    println!("EndElement {name} depth {depth}");
+                    depth -= 1;
+                    buffer.push_str(&format!("</{}>", name));
+                    println!(
+                        "Checking if name.local_name {} matches own_name {} at depth {depth}",
+                        &name.local_name, &own_name
+                    );
+                    if name.local_name == own_name && depth == 0 {
+                        println!(
+                            "Found next EndElement is closing my struct, breaking out of loop"
+                        );
+                        break;
+                    } else {
+                        let _event = reader.next_event()?;
+                    }
+                }
+                ReadEvent::Characters(content) => {
+                    println!("Characters {content} depth {depth}");
+                    buffer.push_str(&content);
+                    let _event = reader.next_event()?;
+                }
+                ReadEvent::StartDocument {
+                    version,
+                    encoding,
+                    standalone,
+                } => todo!(
+                    "StartDocument {:?} {:?} {:?}",
+                    version,
+                    encoding,
+                    standalone
+                ),
+                ReadEvent::EndDocument => todo!(),
+                ReadEvent::ProcessingInstruction { name, data } => {
+                    todo!("ProcessingInstruction {:?}, {:?}", name, data)
+                }
+                ReadEvent::CData(cdata) => todo!("CData, {:?}", cdata),
+                ReadEvent::Comment(comment) => todo!("Comment, {:?}", comment),
+                ReadEvent::Whitespace(whitespace) => todo!("Whitespace, {:?}", whitespace),
+            }
+            let next = reader.peek()?;
+            println!(
+                "Processing done on \ncurrent_event : {:?} \nnext : {:?}",
+                &current_event, &next
+            );
+        }
+
+        println!("buffered events {buffer}");
+
+        Ok(RawXml(buffer))
+    }
+}
+
+impl YaSerializeTrait for RawXml {
+    fn serialize<W: std::io::Write>(&self, writer: &mut ser::Serializer<W>) -> Result<(), String> {
+        let content = self.0.clone();
+        let content = xml::EventReader::from_str(content.as_str());
+        let mut reader = yaserde::de::Deserializer::new(content);
+        loop {
+            let e = reader.next_event()?;
+            if let ReadEvent::EndDocument = e {
+                break;
+            }
+            writer
+                .write(e.as_writer_event().unwrap())
+                .expect("Writer should write write event");
+        }
+        Ok(())
+    }
+
+    fn serialize_attributes(
+        &self,
+        attributes: Vec<xml::attribute::OwnedAttribute>,
+        namespace: xml::namespace::Namespace,
+    ) -> Result<
+        (
+            Vec<xml::attribute::OwnedAttribute>,
+            xml::namespace::Namespace,
+        ),
+        String,
+    > {
+        todo!()
+    }
+}
+// impl YaSerializeTrait for RawXml {
+//     fn serialize<W: std::io::Write>(
+//         &self,
+//         writer: &mut yaserde::ser::Serializer<W>,
+//     ) -> Result<(), String> {
+//         let mut reader = EventReader::from_str(&self.0);
+//         loop {
+//             match reader.next() {
+//                 Ok(ReadEvent::StartElement {
+//                     name,
+//                     attributes,
+//                     namespace,
+//                 }) => {
+//                     let write = WriteEvent::from(reader.next().unwrap());
+//                     writer
+//                         .write(WriteEvent::StartElement {
+//                             name: name.clone(),
+//                             attributes: attributes.clone(),
+//                             namespace: namespace.clone(),
+//                         })
+//                         .map_err(|e| e.to_string())?;
+//                 }
+//                 Ok(ReadEvent::EndElement { name }) => {
+//                     writer
+//                         .write(WriteEvent::EndElement { name: Some(name) })
+//                         .map_err(|e| e.to_string())?;
+//                 }
+//                 Ok(ReadEvent::Characters(content)) => {
+//                     writer
+//                         .write(WriteEvent::Characters(&content))
+//                         .map_err(|e| e.to_string())?;
+//                 }
+//                 Ok(ReadEvent::Eof) => break,
+//                 Err(e) => return Err(e.to_string()),
+//                 _ => {}
+//             }
+//         }
+//         Ok(())
+//     }
+// }
+//
+#[test]
+fn rawxml_should_buffer_empty_element() {
+    let rawxml: RawXml = yaserde::de::from_str("<something/>").unwrap();
+    assert_eq!(rawxml.0, String::from("<something></something>"));
+}
+
+#[test]
+fn rawxml_should_buffer_elements_with_different_case_as_they_are() {
+    let xml = "<xml><Some_thing></Some_thing><something></something></xml>";
+    let rawxml: RawXml = yaserde::de::from_str(xml).unwrap();
+    assert_eq!(rawxml.0, String::from(xml));
+}
+
+#[test]
+fn rawxml_should_buffer_elements_with_attributes() {
+    let xml = r#"<xml version="ababa"><Some_thing></Some_thing><something></something></xml>"#;
+    let rawxml: RawXml = yaserde::de::from_str(xml).unwrap();
+    assert_eq!(rawxml.0, String::from(xml));
+}
+
+#[test]
+fn rawxml_should_handle_complex_documents() {
+    let xml = r#"<xml><OpenVPN version="1.0.0"><Overwrites></Overwrites><Instances></Instances><StaticKeys></StaticKeys></OpenVPN><Gateways version="0.0.1"></Gateways><HAProxy version="4.0.0"><general><enabled>1</enabled><gracefulStop>0</gracefulStop><hardStopAfter>60s</hardStopAfter><closeSpreadTime></closeSpreadTime><seamlessReload>0</seamlessReload><storeOcsp>0</storeOcsp><showIntro>1</showIntro><peers><enabled>0</enabled><name1></name1><listen1></listen1><port1>1024</port1><name2></name2><listen2></listen2><port2>1024</port2></peers><tuning><root>0</root><maxConnections></maxConnections><nbthread>1</nbthread><sslServerVerify>ignore</sslServerVerify><maxDHSize>2048</maxDHSize><bufferSize>16384</bufferSize></tuning></general></HAProxy></xml>"#;
+    let rawxml: RawXml = yaserde::de::from_str(xml).unwrap();
+    assert_eq!(rawxml.0, String::from(xml));
+}
+
+#[test]
+fn rawxml_should_serialize_simple_documents() {
+    let xml = r#"<?xml version="1.0" encoding="utf-8"?><xml />"#;
+    let rawxml: RawXml = yaserde::de::from_str(xml).unwrap();
+    assert_eq!(yaserde::ser::to_string(&rawxml).unwrap(), xml);
+}
+
+#[test]
+fn rawxml_should_serialize_complex_documents() {
+    let xml = r#"<?xml version="1.0" encoding="utf-8"?><xml><OpenVPN version="1.0.0"><Overwrites /><Instances /><StaticKeys /></OpenVPN><Gateways version="0.0.1" /><HAProxy version="4.0.0"><general><enabled>1</enabled><gracefulStop>0</gracefulStop><hardStopAfter>60s</hardStopAfter><closeSpreadTime /><seamlessReload>0</seamlessReload><storeOcsp>0</storeOcsp><showIntro>1</showIntro><peers><enabled>0</enabled><name1 /><listen1 /><port1>1024</port1><name2 /><listen2 /><port2>1024</port2></peers><tuning><root>0</root><maxConnections /><nbthread>1</nbthread><sslServerVerify>ignore</sslServerVerify><maxDHSize>2048</maxDHSize><bufferSize>16384</bufferSize></tuning></general></HAProxy></xml>"#;
+    let rawxml: RawXml = yaserde::de::from_str(xml).unwrap();
+    assert_eq!(yaserde::ser::to_string(&rawxml).unwrap(), xml);
+}
+
+#[test]
+fn rawxml_should_allow_siblings_before() {
+    #[derive(YaDeserialize, YaSerialize)]
+    struct Config {
+        paul: Vec<String>,
+        raw: RawXml,
+    }
+    let xml = r#"<?xml version="1.0" encoding="utf-8"?><Config><paul>bobob</paul><paul>patate</paul><raw>allo something</raw></Config>"#;
+    let config: Config = yaserde::de::from_str(xml).unwrap();
+    assert_eq!(yaserde::ser::to_string(&config).unwrap(), xml);
+}
+
+#[test]
+fn rawxml_should_allow_siblings_after() {
+    #[derive(YaDeserialize, YaSerialize)]
+    struct Config {
+        raw: RawXml,
+        paul: Vec<String>,
+    }
+    let xml = r#"<?xml version="1.0" encoding="utf-8"?><Config><raw>allo something</raw><paul>bobob</paul><paul>patate</paul></Config>"#;
+    let config: Config = yaserde::de::from_str(xml).unwrap();
+    assert_eq!(config.paul.get(0).unwrap(), "bobob");
+    assert_eq!(config.paul.get(1).unwrap(), "patate");
+    assert_eq!(config.paul.len(), 2);
+    assert_eq!(config.raw.0, "<raw>allo something</raw>");
+    assert_eq!(yaserde::ser::to_string(&config).unwrap(), xml);
+}
+
+#[test]
+fn rawxml_should_allow_being_end_of_document() {
+    let xml = r#"<?xml version="1.0" encoding="utf-8"?><Config><raw>allo something</raw><paul>bobob</paul><paul>patate</paul></Config>"#;
+    let config: RawXml = yaserde::de::from_str(xml).unwrap();
+    assert_eq!(yaserde::ser::to_string(&config).unwrap(), xml);
+}
diff --git a/harmony-rs/opnsense-config/src/infra/mod.rs b/harmony-rs/opnsense-config/src/infra/mod.rs
new file mode 100644
index 0000000..66b22fc
--- /dev/null
+++ b/harmony-rs/opnsense-config/src/infra/mod.rs
@@ -0,0 +1,3 @@
+
+pub mod generic_xml;
+
diff --git a/harmony-rs/opnsense-config/src/lib.rs b/harmony-rs/opnsense-config/src/lib.rs
index 7673ffc..e0e5967 100644
--- a/harmony-rs/opnsense-config/src/lib.rs
+++ b/harmony-rs/opnsense-config/src/lib.rs
@@ -1,6 +1,7 @@
 pub mod config;
 pub mod modules;
 pub mod error;
+pub mod infra;
 
 pub use config::Config;
 pub use error::Error;
diff --git a/harmony-rs/opnsense-config/src/modules/deserializer/interfaces.rs b/harmony-rs/opnsense-config/src/modules/deserializer/interfaces.rs
index ee20f80..277048f 100644
--- a/harmony-rs/opnsense-config/src/modules/deserializer/interfaces.rs
+++ b/harmony-rs/opnsense-config/src/modules/deserializer/interfaces.rs
@@ -8,7 +8,8 @@ impl YaSerialize for Interfaces {
         &self,
         writer: &mut yaserde::ser::Serializer<W>,
     ) -> Result<(), String> {
-        todo!()
+        writer.write("Interfaces serializer TODO");
+        Ok(())
     }
 
     fn serialize_attributes(
@@ -88,7 +89,7 @@ impl YaDeserialize for Interfaces {
             }
             let peek = reader.peek()?;
 
-            let mut read_next = true;
+            let read_next = true;
             if let XmlEvent::EndElement { name } = peek {
                 if name.local_name == "interfaces" {
                     println!("Got endElement interfaces, not reading next event");
diff --git a/harmony-rs/opnsense-config/src/modules/opnsense.rs b/harmony-rs/opnsense-config/src/modules/opnsense.rs
index d7c2730..6b2c602 100644
--- a/harmony-rs/opnsense-config/src/modules/opnsense.rs
+++ b/harmony-rs/opnsense-config/src/modules/opnsense.rs
@@ -6,7 +6,7 @@ pub struct OPNsense {
     pub dhcpd: Dhcpd,
     pub theme: String,
     pub sysctl: Sysctl,
-    pub system: System,
+    pub system: RawXml,
     pub interfaces: Interfaces,
     pub snmpd: Snmpd,
     pub syslog: Syslog,
@@ -107,7 +107,7 @@ pub struct Rule {
 
 #[derive(Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
 pub struct Source {
-    pub any: Option<bool>,
+    pub any: Option<u8>,
 }
 
 #[derive(Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
@@ -168,24 +168,24 @@ pub struct System {
     pub timezone: String,
     pub timeservers: String,
     pub webgui: WebGui,
-    pub usevirtualterminal: bool,
-    pub disableconsolemenu: bool,
-    pub disablevlanhwfilter: bool,
-    pub disablechecksumoffloading: bool,
-    pub disablesegmentationoffloading: bool,
-    pub disablelargereceiveoffloading: bool,
-    pub ipv6allow: bool,
+    pub usevirtualterminal: u8,
+    pub disableconsolemenu: u8,
+    pub disablevlanhwfilter: u8,
+    pub disablechecksumoffloading: u8,
+    pub disablesegmentationoffloading: u8,
+    pub disablelargereceiveoffloading: u8,
+    pub ipv6allow: u8,
     pub powerd_ac_mode: String,
     pub powerd_battery_mode: String,
     pub powerd_normal_mode: String,
     pub bogons: Bogons,
     pub crypto_hardware: String,
-    pub pf_share_forward: bool,
-    pub lb_use_sticky: bool,
-    pub kill_states: bool,
+    pub pf_share_forward: u8,
+    pub lb_use_sticky: u8,
+    pub kill_states: u8,
     pub ssh: Ssh,
     pub firmware: Firmware,
-    pub sudo_allow_wheel: bool,
+    pub sudo_allow_wheel: u8,
     pub sudo_allow_group: String,
     pub enablenatreflectionhelper: String,
     pub rulesetoptimization: String,
@@ -211,23 +211,23 @@ pub struct System {
     pub dns7gw: String,
     #[yaserde(rename = "dns8gw")]
     pub dns8gw: String,
-    pub dnsallowoverride: bool,
+    pub dnsallowoverride: u8,
     pub dnsallowoverride_exclude: Option<String>,
 }
 
 #[derive(Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
 pub struct Ssh {
     pub group: String,
-    pub noauto: bool,
+    pub noauto: u8,
     pub interfaces: Option<String>,
     pub kex: Option<String>,
     pub ciphers: Option<String>,
     pub macs: Option<String>,
     pub keys: Option<String>,
     pub enabled: String,
-    pub passwordauth: bool,
+    pub passwordauth: u8,
     pub keysig: Option<String>,
-    pub permitrootlogin: bool,
+    pub permitrootlogin: u8,
 }
 
 #[derive(Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
@@ -288,6 +288,8 @@ pub struct WebGui {
 
 use std::collections::HashMap;
 
+use crate::infra::generic_xml::RawXml;
+
 #[derive(Default, PartialEq, Debug)]
 pub struct Interfaces {
     pub interfaces: HashMap<String, Interface>,
@@ -313,7 +315,7 @@ pub struct Interface {
     #[yaserde(rename = "virtual")]
     pub r#virtual: Option<String>,
     pub subnet: Option<String>,
-    pub networks: Option<bool>,
+    pub networks: Option<u8>,
     pub subnetv6: Option<String>,
     pub ipaddrv6: Option<String>,
     #[yaserde(rename = "track6-interface")]
@@ -374,7 +376,7 @@ pub struct Snmpd {
 
 #[derive(Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
 pub struct Syslog {
-    pub reverse: Option<bool>,
+    pub reverse: Option<u8>,
     pub preservelogs: i32,
 }
 
@@ -399,7 +401,7 @@ pub struct NatRule {
     pub ipprotocol: String,
     pub descr: Option<String>,
     pub tag: Option<String>,
-    pub tagged: Option<bool>,
+    pub tagged: Option<u8>,
     pub poolopts: PoolOpts,
     #[yaserde(rename = "associated-rule-id")]
     pub associated_rule_id: String,
@@ -666,7 +668,7 @@ pub struct Capture {
     #[yaserde(rename = "interfaces")]
     pub interfaces: Option<String>,
     #[yaserde(rename = "egress_only")]
-    pub egress_only: Option<bool>,
+    pub egress_only: Option<u8>,
     #[yaserde(rename = "version")]
     pub version: Option<String>,
     #[yaserde(rename = "targets")]
@@ -1536,7 +1538,7 @@ pub struct Backend {
     #[yaserde(rename = "id")]
     pub id: String,
     #[yaserde(rename = "enabled")]
-    pub enabled: bool,
+    pub enabled: u8,
     #[yaserde(rename = "name")]
     pub name: String,
     #[yaserde(rename = "description")]
@@ -1562,11 +1564,11 @@ pub struct Backend {
     #[yaserde(rename = "source")]
     pub source: Option<String>,
     #[yaserde(rename = "healthCheckEnabled")]
-    pub health_check_enabled: bool,
+    pub health_check_enabled: u8,
     #[yaserde(rename = "healthCheck")]
     pub health_check: Option<String>,
     #[yaserde(rename = "healthCheckLogStatus")]
-    pub health_check_log_status: bool,
+    pub health_check_log_status: u8,
     #[yaserde(rename = "checkInterval")]
     pub check_interval: Option<String>,
     #[yaserde(rename = "checkDownInterval")]
@@ -1578,9 +1580,9 @@ pub struct Backend {
     #[yaserde(rename = "linkedMailer")]
     pub linked_mailer: Option<String>,
     #[yaserde(rename = "http2Enabled")]
-    pub http2_enabled: bool,
+    pub http2_enabled: u8,
     #[yaserde(rename = "http2Enabled_nontls")]
-    pub http2_enabled_nontls: bool,
+    pub http2_enabled_nontls: u8,
     #[yaserde(rename = "ba_advertised_protocols")]
     pub ba_advertised_protocols: String,
     #[yaserde(rename = "persistence")]
@@ -1590,7 +1592,7 @@ pub struct Backend {
     #[yaserde(rename = "persistence_cookiename")]
     pub persistence_cookiename: Option<String>,
     #[yaserde(rename = "persistence_stripquotes")]
-    pub persistence_stripquotes: bool,
+    pub persistence_stripquotes: u8,
     #[yaserde(rename = "stickiness_pattern")]
     pub stickiness_pattern: String,
     #[yaserde(rename = "stickiness_dataTypes")]
@@ -1616,7 +1618,7 @@ pub struct Backend {
     #[yaserde(rename = "stickiness_bytesOutRatePeriod")]
     pub stickiness_bytes_out_rate_period: String,
     #[yaserde(rename = "basicAuthEnabled")]
-    pub basic_auth_enabled: bool,
+    pub basic_auth_enabled: u8,
     #[yaserde(rename = "basicAuthUsers")]
     pub basic_auth_users: Option<String>,
     #[yaserde(rename = "basicAuthGroups")]
@@ -1634,11 +1636,11 @@ pub struct Backend {
     #[yaserde(rename = "tuning_defaultserver")]
     pub tuning_defaultserver: Option<String>,
     #[yaserde(rename = "tuning_noport")]
-    pub tuning_noport: bool,
+    pub tuning_noport: u8,
     #[yaserde(rename = "tuning_httpreuse")]
     pub tuning_httpreuse: Option<String>,
     #[yaserde(rename = "tuning_caching")]
-    pub tuning_caching: bool,
+    pub tuning_caching: u8,
     #[yaserde(rename = "linkedActions")]
     pub linked_actions: Option<String>,
     #[yaserde(rename = "linkedErrorfiles")]
@@ -1658,7 +1660,7 @@ pub struct HAProxyServer {
     #[yaserde(rename = "id")]
     pub id: String,
     #[yaserde(rename = "enabled")]
-    pub enabled: bool,
+    pub enabled: u8,
     #[yaserde(rename = "name")]
     pub name: String,
     #[yaserde(rename = "description")]
@@ -1686,11 +1688,11 @@ pub struct HAProxyServer {
     #[yaserde(rename = "resolvePrefer")]
     pub resolve_prefer: Option<String>,
     #[yaserde(rename = "ssl")]
-    pub ssl: bool,
+    pub ssl: u8,
     #[yaserde(rename = "sslSNI")]
     pub ssl_sni: Option<String>,
     #[yaserde(rename = "sslVerify")]
-    pub ssl_verify: bool,
+    pub ssl_verify: u8,
     #[yaserde(rename = "sslCA")]
     pub ssl_ca: Option<String>,
     #[yaserde(rename = "sslCRL")]
@@ -1731,7 +1733,7 @@ pub struct HAProxyHealthCheck {
     pub ssl: String,
     #[yaserde(rename = "sslSNI")]
     pub ssl_sni: Option<String>,
-    pub force_ssl: bool,
+    pub force_ssl: u8,
     pub checkport: Option<String>,
     pub http_method: String,
     pub http_uri: String,