Citizens2 has Maven.

CompatNoCheatPlus/pom.xml

@@ -23,6 +23,10 @@
       <id>md_5-releases</id>
       <url>http://repo.md-5.net/content/repositories/releases/</url>
     </repository>
+    <repository>
+      <id>cititensnpcs</id>
+      <url>http://repo.citizensnpcs.co/</url>
+    </repository>
   </repositories>
 
     <!-- Dependencies -->
@@ -50,8 +54,7 @@
           <groupId>net.citizensnpcs</groupId>
           <artifactId>citizensapi</artifactId>
           <version>2.0.16-SNAPSHOT</version>
-            <scope>system</scope>
-            <systemPath>${basedir}/local-maven/citizensapi-2.0.16-SNAPSHOT.jar</systemPath>
+          <scope>compile</scope>
        </dependency>
        <dependency>
        	<groupId>com.nisovin</groupId>