diff --git a/.github/workflows/generic.checkstyle.yml b/.github/workflows/generic.checkstyle.yml
new file mode 100644
index 00000000..a57e6cd2
--- /dev/null
+++ b/.github/workflows/generic.checkstyle.yml
@@ -0,0 +1,18 @@
+name: 'Generic: Checkstyle'
+
+on:
+  workflow_call:
+
+jobs:
+  checkstyle:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: dbelyaev/action-checkstyle@v0.8.4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          checkstyle_version: 10.12.2
+          checkstyle_config: ./config/mv_checks.xml
diff --git a/.github/workflows/pr.checkstyle.yml b/.github/workflows/pr.checkstyle.yml
new file mode 100644
index 00000000..100efc0b
--- /dev/null
+++ b/.github/workflows/pr.checkstyle.yml
@@ -0,0 +1,9 @@
+name: 'PR: Checkstyle'
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  checkstyle:
+    uses: ./.github/workflows/generic.checkstyle.yml
diff --git a/build.gradle b/build.gradle
index 1f1b84fa..08f4e6b0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -161,7 +161,7 @@ processResources {
 
 
 checkstyle {
-    toolVersion = '6.1.1'
+    toolVersion = '10.12.2'
     configFile file('config/mv_checks.xml')
     ignoreFailures = true
 }
diff --git a/config/mv_checks.xml b/config/mv_checks.xml
index 0c660d8d..553c6530 100644
--- a/config/mv_checks.xml
+++ b/config/mv_checks.xml
@@ -6,136 +6,372 @@
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
 
 <!DOCTYPE module PUBLIC
-    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
-    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+        "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+        "https://checkstyle.org/dtds/configuration_1_3.dtd">
 <!-- Future reference: valid severity values are 'ignore', 'info', 'warning', 'error' -->
 <module name="Checker">
-    <module name="JavadocPackage">
-        <property name="allowLegacy" value="true"/>
-    </module>
+
+    <!-- Javadoc Comments -->
+    <module name="JavadocPackage"/><!-- require package-info.java file -->
+
+    <!-- Miscellaneous -->
     <module name="NewlineAtEndOfFile" />
+    <module name="OrderedProperties"/>
     <module name="Translation"/>
-    <module name="FileLength"/>
-    <module name="FileTabCharacter">
-        <property name="eachLine" value="true"/>
-    </module>
+    <module name="UniqueProperties"/>
+
+    <!-- Regexp -->
     <module name="RegexpSingleline">
         <property name="message" value="Line has trailing spaces."/>
         <property name="format" value="\s+$"/>
     </module>
-    <module name="SuppressWithNearbyCommentFilter">
-        <property name="commentFormat" value="SUPPRESS CHECKSTYLE: (\w+)"/>
-        <property name="checkFormat" value="$1"/>
+
+    <!-- Size Violations -->
+    <module name="FileLength">
+        <property name="max" value="2000"/>
     </module>
-    <module name="SuppressionCommentFilter">
-           <property name="offCommentFormat" value="BEGIN CHECKSTYLE-SUPPRESSION\: (\w+)"/>
-           <property name="onCommentFormat" value="END CHECKSTYLE-SUPPRESSION\: (\w+)"/>
-           <property name="checkFormat" value="$1"/>
+    <module name="LineLength">
+        <property name="fileExtensions" value="java"/>
+        <property name="max" value="160"/>
+        <property name="severity" value="warning"/>
     </module>
-    <module name="SuppressionCommentFilter">
-           <property name="offCommentFormat" value="BEGIN CHECKSTYLE-SUPPRESSION\: ALL"/>
-           <property name="onCommentFormat" value="END CHECKSTYLE-SUPPRESSION\: ALL"/>
+
+    <!-- Whitespace -->
+    <module name="FileTabCharacter">
+        <property name="eachLine" value="true"/>
     </module>
+
     <module name="TreeWalker">
         <!-- Make suppression possible -->
-        <module name="FileContentsHolder"/>
+        <module name="SuppressWithNearbyCommentFilter">
+            <property name="commentFormat" value="SUPPRESS CHECKSTYLE: (\w+)"/>
+            <property name="checkFormat" value="$1"/>
+        </module>
+        <module name="SuppressionCommentFilter">
+            <property name="offCommentFormat" value="BEGIN CHECKSTYLE-SUPPRESSION\: (\w+)"/>
+            <property name="onCommentFormat" value="END CHECKSTYLE-SUPPRESSION\: (\w+)"/>
+            <property name="checkFormat" value="$1"/>
+        </module>
+        <module name="SuppressionCommentFilter">
+            <property name="offCommentFormat" value="BEGIN CHECKSTYLE-SUPPRESSION\: ALL"/>
+            <property name="onCommentFormat" value="END CHECKSTYLE-SUPPRESSION\: ALL"/>
+        </module>
+
         <!-- Actual checks -->
-        <module name="LineLength">
-            <property name="max" value="160"/>
+
+        <!-- Annotations -->
+        <module name="AnnotationLocation"/>
+        <module name="AnnotationUseStyle"/>
+        <module name="MissingDeprecated"/>
+        <module name="MissingOverride"/>
+
+        <!-- Block Checks -->
+        <module name="AvoidNestedBlocks"/>
+        <module name="EmptyBlock"/>
+        <module name="EmptyCatchBlock">
+            <property name="exceptionVariableName" value="ignore"/>
+        </module>
+        <module name="LeftCurly">
+            <property name="ignoreEnums" value="false"/>
+        </module>
+        <module name="NeedBraces">
+            <property name="tokens" value="LITERAL_IF"/>
+            <property name="allowSingleLineStatement" value="true"/>
+        </module>
+        <module name="NeedBraces">
+            <property name="tokens" value="LITERAL_DO,LITERAL_ELSE,LITERAL_FOR,LITERAL_WHILE"/>
+        </module>
+        <module name="RightCurly"/>
+
+        <!-- Class Design -->
+        <module name="DesignForExtension">
+            <property name="severity" value="info"/>
+        </module>
+        <module name="FinalClass"/>
+        <module name="HideUtilityClassConstructor"/>
+        <module name="InnerTypeLast"/>
+        <module name="InterfaceIsType"/>
+        <module name="MutableException"/>
+        <module name="OneTopLevelClass"/>
+        <module name="ThrowsCount">
+            <property name="max" value="0"/>
+        </module>
+        <module name="VisibilityModifier">
+            <property name="protectedAllowed" value="true"/>
+        </module>
+
+        <!-- Coding -->
+        <module name="ArrayTrailingComma"/>
+        <module name="AvoidDoubleBraceInitialization"/>
+        <module name="AvoidNoArgumentSuperConstructorCall"/>
+        <module name="CovariantEquals"/>
+        <module name="DeclarationOrder"/>
+        <module name="DefaultComesLast"/>
+        <module name="EmptyStatement"/>
+        <module name="EqualsAvoidNull"/>
+        <module name="EqualsHashCode"/>
+        <module name="FallThrough">
+            <property name="checkLastCaseGroup" value="true"/>
+        </module>
+        <module name="HiddenField">
+            <property name="ignoreConstructorParameter" value="true"/>
+            <property name="ignoreSetter" value="true"/>
+            <property name="setterCanReturnItsClass" value="true"/>
+            <property name="ignoreAbstractMethods" value="true"/>
+        </module>
+        <module name="IllegalCatch"/>
+        <module name="IllegalThrows"/>
+        <module name="IllegalToken"/>
+        <module name="IllegalType"/>
+        <module name="InnerAssignment"/>
+        <module name="MagicNumber">
+            <property name="ignoreHashCodeMethod" value="true"/>
+            <property name="ignoreAnnotationElementDefaults" value="true"/>
+        </module>
+        <module name="MissingSwitchDefault"/>
+        <module name="ModifiedControlVariable"/>
+        <module name="MultipleStringLiterals"/>
+        <module name="MultipleVariableDeclarations"/>
+        <module name="NestedForDepth">
             <property name="severity" value="warning"/>
         </module>
-        <module name="JavadocMethod">
-            <property name="scope" value="package"/><!-- We don't need javadoc for private methods -->
-            <property name="tokens" value="METHOD_DEF"/><!-- We don't need javadoc for constructors -->
+        <module name="NestedIfDepth"/>
+        <module name="NestedTryDepth"/>
+        <module name="NoClone"/>
+        <module name="NoFinalizer"/>
+        <module name="OneStatementPerLine"/>
+        <module name="PackageDeclaration"/>
+        <module name="ParameterAssignment"/>
+        <module name="RequireThis"/>
+        <module name="ReturnCount"/>
+        <module name="SimplifyBooleanExpression"/>
+        <module name="SimplifyBooleanReturn"/>
+        <module name="StringLiteralEquality"/>
+        <module name="SuperClone"/>
+        <module name="SuperFinalize"/>
+        <module name="UnnecessaryParentheses"/>
+        <module name="UnnecessarySemicolonAfterOuterTypeDeclaration"/>
+        <module name="UnnecessarySemicolonAfterTypeMemberDeclaration"/>
+        <module name="UnnecessarySemicolonInEnumeration"/>
+        <module name="UnnecessarySemicolonInTryWithResources"/>
+        <module name="UnusedLocalVariable"/>
+        <module name="VariableDeclarationUsageDistance">
+            <property name="allowedDistance" value="3"/>
+            <property name="validateBetweenScopes" value="false"/>
         </module>
+        <module name="VariableDeclarationUsageDistance">
+            <property name="allowedDistance" value="5"/>
+            <property name="validateBetweenScopes" value="true"/>
+        </module>
+
+        <!-- Imports -->
+        <module name="AvoidStarImport"/>
+        <module name="IllegalImport">
+            <property name="illegalPkgs" value="sun"/>
+        </module>
+        <module name="ImportOrder"/>
+        <module name="RedundantImport"/>
+        <module name="UnusedImports"/>
+
+        <!-- Javadoc Comments -->
+        <module name="AtclauseOrder"/>
+        <module name="InvalidJavadocPosition"/>
+        <module name="JavadocBlockTagLocation"/>
+        <module name="JavadocContentLocationCheck"/>
+        <module name="JavadocMethod">
+            <property name="accessModifiers" value="public, protected, package"/>
+            <property name="tokens" value="METHOD_DEF"/>
+        </module>
+        <module name="JavadocMethod">
+            <property name="accessModifiers" value="public"/>
+        </module>
+        <module name="JavadocMissingLeadingAsterisk"/>
+        <module name="JavadocMissingWhitespaceAfterAsterisk"/>
+        <module name="JavadocParagraph">
+            <property name="allowNewlineParagraph" value="true"/>
+        </module>
+        <module name="JavadocStyle">
+            <property name="scope" value="package"/>
+        </module>
+        <module name="JavadocTagContinuationIndentation"/>
         <module name="JavadocType"/>
         <module name="JavadocVariable">
-            <property name="scope" value="package"/><!-- We don't need javadoc for private variables -->
+            <property name="scope" value="package"/>
         </module>
-        <module name="JavadocStyle"/>
+        <module name="MissingJavadocMethod">
+            <property name="scope" value="public"/>
+            <property name="allowMissingPropertyJavadoc" value="true"/>
+        </module>
+        <module name="MissingJavadocMethod">
+            <property name="scope" value="protected"/>
+            <property name="excludeScope" value="public"/>
+            <property name="allowMissingPropertyJavadoc" value="true"/>
+            <property name="minLineCount" value="2"/>
+        </module>
+        <module name="MissingJavadocType"/>
+        <module name="NonEmptyAtclauseDescription"/>
+        <module name="RequireEmptyLineBeforeBlockTagGroup"/>
+        <module name="SingleLineJavadoc"/>
+        <module name="SummaryJavadoc"/>
         <module name="WriteTag">
             <property name="tag" value="@author"/>
             <property name="tagFormat" value="\S"/>
             <property name="severity" value="ignore"/>
             <property name="tagSeverity" value="warning"/>
         </module>
+
+        <!-- Metrics -->
+        <module name="BooleanExpressionComplexity"/>
+        <module name="ClassDataAbstractionCoupling">
+            <property name="max" value="7"/>
+            <property name="excludedClasses" value="ArrayIndexOutOfBoundsException, ArrayList, Boolean, Byte, Character, Class, Collection, Deprecated, Deque, Double, DoubleStream, EnumSet, Exception, Float, FunctionalInterface, HashMap, HashSet, IllegalArgumentException, IllegalStateException, IndexOutOfBoundsException, IntStream, Integer, LinkedHashMap, LinkedHashSet, LinkedList, List, Long, LongStream, Map, NullPointerException, Object, Optional, OptionalDouble, OptionalInt, OptionalLong, Override, Queue, RuntimeException, SafeVarargs, SecurityException, Set, Short, SortedMap, SortedSet, Stream, String, StringBuffer, StringBuilder, SuppressWarnings, Throwable, TreeMap, TreeSet, UnsupportedOperationException, Void, boolean, byte, char, double, float, int, long, short, var, void"/>
+        </module>
+        <module name="ClassFanOutComplexity">
+            <property name="max" value="20"/>
+            <property name="excludedClasses" value="ArrayIndexOutOfBoundsException, ArrayList, Boolean, Byte, Character, Class, Collection, Deprecated, Deque, Double, DoubleStream, EnumSet, Exception, Float, FunctionalInterface, HashMap, HashSet, IllegalArgumentException, IllegalStateException, IndexOutOfBoundsException, IntStream, Integer, LinkedHashMap, LinkedHashSet, LinkedList, List, Long, LongStream, Map, NullPointerException, Object, Optional, OptionalDouble, OptionalInt, OptionalLong, Override, Queue, RuntimeException, SafeVarargs, SecurityException, Set, Short, SortedMap, SortedSet, Stream, String, StringBuffer, StringBuilder, SuppressWarnings, Throwable, TreeMap, TreeSet, UnsupportedOperationException, Void, boolean, byte, char, double, float, int, long, short, var, void"/>
+        </module>
+        <module name="CyclomaticComplexity">
+            <property name="max" value="7"/>
+            <property name="severity" value="warning"/>
+        </module>
+        <module name="JavaNCSS">
+            <property name="methodMaximum" value="50"/>
+            <property name="classMaximum" value="1500"/>
+            <property name="fileMaximum" value="2000"/>
+            <property name="recordMaximum" value="150"/>
+        </module>
+        <module name="NPathComplexity">
+            <property name="max" value="200"/>
+        </module>
+
+        <!-- Miscellaneous -->
+        <module name="ArrayTypeStyle"/>
+        <module name="AvoidEscapedUnicodeCharacters">
+            <property name="allowNonPrintableEscapes" value="true"/>
+        </module>
+        <module name="CommentsIndentation"/>
+        <module name="Indentation">
+            <property name="basicOffset" value="4"/>
+            <property name="braceAdjustment" value="0"/>
+            <property name="caseIndent" value="4"/>
+            <property name="throwsIndent" value="4"/>
+            <property name="arrayInitIndent" value="4"/>
+            <property name="lineWrappingIndentation" value="4"/>
+            <property name="forceStrictCondition" value="true"/>
+        </module>
+        <module name="NoCodeInFile"/>
+        <module name="OuterTypeFilename"/>
+        <module name="TodoComment">
+            <property name="format" value="TODO"/>
+            <property name="severity" value="warning"/>
+        </module>
+        <module name="TrailingComment"/>
+        <module name="UncommentedMain"/>
+        <module name="UpperEll"/>
+
+        <!-- Modifiers -->
+        <module name="ModifierOrder"/>
+        <module name="RedundantModifier"/>
+
+        <!-- Naming Conventions -->
+        <module name="AbbreviationAsWordInName">
+            <property name="ignoreFinal" value="false"/>
+            <property name="allowedAbbreviations" value="MV"/>
+        </module>
+        <module name="AbstractClassName"/>
+        <module name="CatchParameterName"/>
+        <module name="ClassTypeParameterName">
+            <property name="format" value="^[A-Z]{1,3}$"/>
+        </module>
         <module name="ConstantName"/>
+        <module name="IllegalIdentifierName"/>
+        <module name="InterfaceTypeParameterName">
+            <property name="format" value="^[A-Z]{1,3}$"/>
+        </module>
+        <module name="LambdaParameterName"/>
+        <module name="LocalFinalVariableName"/>
         <module name="LocalVariableName"/>
         <module name="MemberName"/>
         <module name="MethodName"/>
+        <module name="MethodTypeParameterName">
+            <property name="format" value="^[A-Z]{1,3}$"/>
+        </module>
         <module name="PackageName"/>
         <module name="ParameterName"/>
+        <module name="PatternVariableName"/>
+        <module name="RecordComponentName"/>
+        <module name="RecordTypeParameterName">
+            <property name="format" value="^[A-Z]{1,3}$"/>
+        </module>
         <module name="StaticVariableName"/>
         <module name="TypeName"/>
-        <module name="AvoidStarImport">
-            <property name="severity" value="warning"/>
-            <property name="excludes" value="com.onarandombox.MultiverseCore.utils,com.onarandombox.MultiverseCore.configuration,com.onarandombox.MultiverseCore.commands,com.onarandombox.MultiverseCore.destination"/>
+
+        <!-- Size Violations -->
+        <module name="AnonInnerLength">
+            <property name="max" value="20"/>
         </module>
-        <module name="IllegalImport"/>
-        <module name="RedundantImport"/>
-        <module name="UnusedImports">
-            <property name="processJavadoc" value="true"/>
+        <module name="ExecutableStatementCount">
+            <property name="max" value="30"/>
+        </module>
+        <module name="LambdaBodyLength">
+            <property name="max" value="10"/>
+        </module>
+        <module name="MethodCount">
+            <property name="maxTotal" value="100"/>
+            <property name="maxPrivate" value="100"/>
+            <property name="maxPackage" value="100"/>
+            <property name="maxProtected" value="100"/>
+            <property name="maxPublic" value="100"/>
         </module>
         <module name="MethodLength">
+            <property name="max" value="50"/>
             <property name="severity" value="warning"/>
-            <property name="countEmpty" value="false"/>
         </module>
-        <module name="ParameterNumber"/>
+        <module name="OuterTypeNumber">
+            <property name="max" value="1"/>
+        </module>
+        <module name="ParameterNumber">
+            <property name="max" value="3"/>
+            <property name="ignoreOverriddenMethods" value="true"/>
+            <property name="severity" value="warning"/>
+        </module>
+        <module name="RecordComponentNumber">
+            <property name="max" value="8"/>
+        </module>
+
+        <!-- Whitespace -->
+        <module name="EmptyForInitializerPad"/>
         <module name="EmptyForIteratorPad"/>
+        <module name="EmptyLineSeparator">
+            <property name="allowNoEmptyLineBetweenFields" value="true"/>
+            <property name="allowMultipleEmptyLines" value="false"/>
+            <property name="allowMultipleEmptyLinesInsideClassMembers" value="false"/>
+        </module>
+        <module name="GenericWhitespace"/>
         <module name="MethodParamPad"/>
+        <module name="NoLineWrap"/>
         <module name="NoWhitespaceAfter">
-            <property name="tokens" value="BNOT, DEC, DOT, INC, LNOT, UNARY_MINUS, UNARY_PLUS"/>
+            <property name="tokens" value="AT,INC,DEC,UNARY_MINUS,UNARY_PLUS,BNOT,LNOT,DOT,ARRAY_DECLARATOR,INDEX_OP,LITERAL_SYNCHRONIZED,METHOD_REF"/>
+        </module>
+        <module name="NoWhitespaceBefore">
+            <property name="tokens" value="COMMA,SEMI,POST_INC,POST_DEC,DOT,GENERIC_START,GENERIC_END,ELLIPSIS,LABELED_STAT,METHOD_REF"/>
+        </module>
+        <module name="NoWhitespaceBeforeCaseDefaultColon"/>
+        <module name="OperatorWrap">
+            <property name="tokens" value="QUESTION,COLON,EQUAL,NOT_EQUAL,DIV,PLUS,MINUS,STAR,MOD,SR,BSR,GE,GT,SL,LE,LT,BXOR,BOR,LOR,BAND,LAND,LITERAL_INSTANCEOF,TYPE_EXTENSION_AND,ASSIGN,DIV_ASSIGN,PLUS_ASSIGN,MINUS_ASSIGN,STAR_ASSIGN,MOD_ASSIGN,SR_ASSIGN,BSR_ASSIGN,SL_ASSIGN,BXOR_ASSIGN,BOR_ASSIGN,BAND_ASSIGN,METHOD_REF"/>
         </module>
-        <module name="NoWhitespaceBefore"/>
-        <module name="OperatorWrap"/>
         <module name="ParenPad"/>
+        <module name="SeparatorWrap">
+            <property name="option" value="nl"/>
+            <property name="tokens" value="DOT,AT,RPAREN,METHOD_REF"/>
+        </module>
+        <module name="SeparatorWrap">
+            <property name="option" value="eol"/>
+            <property name="tokens" value="COMMA,SEMI,ELLIPSIS,LPAREN,ARRAY_DECLARATOR,RBRACK"/>
+        </module>
+        <module name="SingleSpaceSeparator"/>
         <module name="TypecastParenPad"/>
-        <module name="WhitespaceAfter">
-            <property name="severity" value="warning"/>
-        </module>
-        <module name="WhitespaceAround">
-            <property name="severity" value="warning"/>
-        </module>
-        <module name="ModifierOrder"/>
-        <module name="RedundantModifier"/>
-        <module name="AvoidNestedBlocks"/>
-        <module name="EmptyBlock">
-            <property name="tokens" value="LITERAL_DO,LITERAL_ELSE,LITERAL_FINALLY,LITERAL_IF,LITERAL_FOR,LITERAL_TRY,LITERAL_WHILE,INSTANCE_INIT,STATIC_INIT"/>
-        </module>
-        <module name="LeftCurly"/>
-        <module name="RightCurly"/>
-        <module name="EmptyStatement"/>
-        <module name="EqualsHashCode"/>
-        <module name="HiddenField">
-            <property name="tokens" value="VARIABLE_DEF"/><!-- We don't care if parameters hide fields. -->
-        </module>
-        <module name="IllegalInstantiation"/>
-        <module name="InnerAssignment"/>
-        <module name="MagicNumber">
-            <property name="ignoreNumbers" value="-1, 0, 0.5, 1, 2, 3"/>
-        </module>
-        <module name="MissingSwitchDefault"/>
-        <module name="SimplifyBooleanExpression"/>
-        <module name="SimplifyBooleanReturn"/>
-        <!-- Don't like errors for `final` missing
-        <module name="DesignForExtension"/>
-        <module name="FinalClass"/>
-        -->
-        <module name="HideUtilityClassConstructor"/>
-        <module name="InterfaceIsType"/>
-        <module name="VisibilityModifier">
-            <property name="protectedAllowed" value="true"/>
-        </module>
-        <module name="ArrayTypeStyle"/>
-        <!-- Don't like errors for `final` missing
-        <module name="FinalParameters"/>
-        -->
-        <module name="TodoComment">
-            <property name="severity" value="info"/>
-        </module>
-        <module name="UpperEll"/>
-        <module name="Indentation"/>
-        <module name="MissingDeprecated"/>
-        <module name="MissingOverride"/>
+        <module name="WhitespaceAfter"/>
+        <module name="WhitespaceAround"/>
     </module>
 </module>