diff --git a/.envrc b/.envrc
deleted file mode 100644
index 3550a30..0000000
--- a/.envrc
+++ /dev/null
@@ -1 +0,0 @@
-use flake
diff --git a/.gitignore b/.gitignore
index 4a13688..52675fc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,6 @@ build/
 ### nix / direnv
 .direnv
 result
+
+### jetty
+.jetty/home
diff --git a/build.xml b/build.xml
deleted file mode 100644
index e69de29..0000000
diff --git a/flake.lock b/flake.lock
index f82f111..8ba051b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -29,8 +29,8 @@
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-unstable",
         "repo": "nixpkgs",
+        "rev": "9da7f1cf7f8a6e2a7cb3001b048546c92a8258b4",
         "type": "github"
       }
     },
diff --git a/flake.nix b/flake.nix
index 6a927be..25d97a9 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,10 +3,14 @@
 
   inputs = {
     flake-parts.url = "github:hercules-ci/flake-parts";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs.url = "github:NixOS/nixpkgs/9da7f1cf7f8a6e2a7cb3001b048546c92a8258b4";
   };
 
-  outputs = inputs @ {flake-parts, ...}:
+  outputs = inputs @ {
+    flake-parts,
+    self,
+    ...
+  }:
     flake-parts.lib.mkFlake {inherit inputs;} {
       imports = [];
       systems = ["x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin"];
@@ -95,14 +99,38 @@
                   mermaid-cli
                   openjdk
                   jetty
-                  ant
+                  maven
                 ]
                 ++ latexPackages;
 
-              shellHook = ''
-                echo "Usage Example:"
-                echo "jetty ..."
-              '';
+              shellHook =
+                # bash
+                ''
+                  # jetty docs: https://jetty.org/docs/jetty/12.1/operations-guide/begin/index.html
+                  export JETTY_HOME="$(readlink -f .)/.jetty/home"
+                  export JETTY_BASE="$(readlink -f .)/.jetty/base"
+
+                  mkdir -p "$JETTY_HOME" "$JETTY_BASE"
+                  for item in ${pkgs.jetty}/*; do
+                      ln -sf "$item" "$JETTY_HOME/"
+                  done
+
+                  jetty() {
+                    mkdir -p $JETTY_BASE/webapps/
+                    ln -fs "$(readlink -f target/*.war)" $JETTY_BASE/webapps/
+
+                    java \
+                      -Djetty.home="$JETTY_HOME" \
+                      -Djetty.base="$JETTY_BASE" \
+                      -jar $JETTY_HOME/start.jar $@
+                  }
+
+                  jetty --add-modules=http,ee11-cdi,ee11-ext,ee11-deploy,ee11-environment,ee11-annotations,ee11-glassfish-jstl,ee11-jndi,ee11-jsp,ee11-jstl,ee11-plus,ee11-security,ee11-servlet,ee11-servlets,ee11-webapp,ee11-websocket-jakarta,ee11-websocket-jetty,ee11-websocket-jetty-client-webapp
+
+                  echo "Usage Example:"
+                  echo "jetty --add-modules=... # add modules"
+                  echo "jetty # run webserver"
+                '';
             };
         };
       flake = {
diff --git a/pom.xml b/pom.xml
index 1e7a292..fb0fcb4 100755
--- a/pom.xml
+++ b/pom.xml
@@ -12,48 +12,70 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.target>8</maven.compiler.target>
-    <maven.compiler.source>8</maven.compiler.source>
+    <project.report.sourceEncoding>UTF-8</project.report.sourceEncoding>
+    <maven.compiler.release>21</maven.compiler.release>
     <junit.version>5.11.0-M2</junit.version>
+    <compiler-plugin.version>3.13.0</compiler-plugin.version>
+    <war-plugin.version>3.4.0</war-plugin.version>
   </properties>
 
   <dependencies>
-<dependency>
-      <groupId>jakarta.platform</groupId>
-      <artifactId>jakarta.jakartaee-web-api</artifactId>
-      <version>11.0.0-M3</version>
-      <scope>provided</scope>
-    </dependency><dependency>
-      <groupId>org.jboss.weld.se</groupId>
-      <artifactId>weld-se-core</artifactId>
-      <version>6.0.0.Beta1</version>
+    <dependency>
+        <groupId>jakarta.platform</groupId>
+        <artifactId>jakarta.jakartaee-web-api</artifactId>
+        <version>11.0.0</version>
+        <scope>provided</scope>
     </dependency>
-<dependency>
+
+    <dependency>
+        <groupId>org.glassfish</groupId>
+        <artifactId>jakarta.faces</artifactId>
+        <version>4.1.3</version>
+    </dependency>
+
+    <dependency>
+        <groupId>jakarta.enterprise</groupId>
+        <artifactId>jakarta.enterprise.cdi-api</artifactId>
+        <version>4.1.0</version>
+    </dependency>
+    <dependency>
+        <groupId>jakarta.enterprise</groupId>
+        <artifactId>jakarta.enterprise.cdi-el-api</artifactId>
+        <version>4.1.0</version>
+    </dependency>
+
+    <dependency>
+        <groupId>org.jboss.weld.servlet</groupId>
+        <artifactId>weld-servlet-core</artifactId>
+        <version>5.1.2.Final</version>
+    </dependency>
+
+    <dependency>
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter-api</artifactId>
       <version>${junit.version}</version>
-      <scope>test</scope>
     </dependency>
-      <dependency>
-        <groupId>org.junit.jupiter</groupId>
-        <artifactId>junit-jupiter-engine</artifactId>
-        <version>${junit.version}</version>
-        <scope>test</scope>
-      </dependency>
-      <dependency>
-          <groupId>org.projectlombok</groupId>
-          <artifactId>lombok</artifactId>
-          <version>RELEASE</version>
-          <scope>provided</scope>
-      </dependency>
+
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>1.18.30</version>
+    </dependency>
   </dependencies>
 
   <build>
+    <finalName>demo</finalName>
     <plugins>
-<plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-war-plugin</artifactId>
-        <version>3.4.0</version>
-      </plugin>    </plugins>
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <version>${compiler-plugin.version}</version>
+        </plugin>
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-war-plugin</artifactId>
+            <version>${war-plugin.version}</version>
+            </plugin>
+        </plugins>
   </build>
-</project>
\ No newline at end of file
+</project>
diff --git a/src/main/webapp/WEB-INF/beans.xml b/src/main/webapp/WEB-INF/beans.xml
new file mode 100644
index 0000000..26dc70a
--- /dev/null
+++ b/src/main/webapp/WEB-INF/beans.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="https://jakarta.ee/xml/ns/jakartaee"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/beans_4_0.xsd"
+       version="4.0" bean-discovery-mode="annotated">
+</beans>
diff --git a/src/main/webapp/WEB-INF/web.xml b/src/main/webapp/WEB-INF/web.xml
index e94a73e..cb1c621 100755
--- a/src/main/webapp/WEB-INF/web.xml
+++ b/src/main/webapp/WEB-INF/web.xml
@@ -3,13 +3,20 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/web-app_6_0.xsd"
          version="6.0">
+
+    <context-param>
+        <param-name>jakarta.faces.CONFIG_FILES</param-name>
+        <param-value>/WEB-INF/faces-config.xml</param-value>
+    </context-param>
+
     <servlet>
         <servlet-name>Faces Servlet</servlet-name>
         <servlet-class>jakarta.faces.webapp.FacesServlet</servlet-class>
         <load-on-startup>1</load-on-startup>
     </servlet>
+
     <servlet-mapping>
         <servlet-name>Faces Servlet</servlet-name>
         <url-pattern>*.xhtml</url-pattern>
     </servlet-mapping>
-</web-app>
\ No newline at end of file
+</web-app>