few fixes to make it actually run

build-data/mappings-patch.tiny

@@ -74,3 +74,7 @@ c	net/minecraft/world/entity/projectile/EntityTippedArrow	net/minecraft/world/en
 #		p	1		entry
 #		p	2		context
 #	m	(Lcom/google/gson/JsonObject;Lnet/minecraft/world/level/storage/loot/entries/LootEntryAbstract;Lcom/google/gson/JsonSerializationContext;)V	serializeType	serializeCustom
+
+# missed mapping?
+c	net/minecraft/world/level/block/MultifaceBlock	net/minecraft/world/level/block/MultifaceBlock
+	m	(Lnet/minecraft/world/level/block/state/IBlockData;Lnet/minecraft/world/level/IBlockAccess;Lnet/minecraft/core/BlockPosition;Lnet/minecraft/core/EnumDirection;)Lnet/minecraft/world/level/block/state/IBlockData;	c	getStateForPlacement

patches/server/Build-system-changes.patch

@@ -38,7 +38,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      testImplementation("org.hamcrest:hamcrest-library:1.3")
  }
 @@ -0,0 +0,0 @@ tasks.jar {
-             "Implementation-Vendor" to Instant.now().epochSecond,
+             "Implementation-Vendor" to SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'").format(Date()), // Paper
              "Specification-Title" to "Bukkit",
              "Specification-Version" to project.version,
 -            "Specification-Vendor" to "Bukkit Team"

patches/server/MC-Utils.patch

@@ -2302,7 +2302,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
              }
          }
  
-+        /* // Paper start - comment out useless overrides @Override
++        // Paper start - comment out useless overrides @Override - TODO figure out why this is suddenly important to keep
          @Override
          public BlockPos.MutableBlockPos setX(int i) {
              super.setX(i);
@@ -2310,7 +2310,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
              super.setZ(i);
              return this;
          }
-+        */ // Paper end
++        // Paper end
  
          @Override
          public BlockPos immutable() {

patches/server/Setup-Gradle-project.patch

@@ -22,7 +22,12 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +++ b/build.gradle.kts
 @@ -0,0 +0,0 @@
 +import com.github.jengelman.gradle.plugins.shadow.transformers.AppendingTransformer
-+import java.time.Instant
++import com.github.jengelman.gradle.plugins.shadow.transformers.Log4j2PluginsCacheFileTransformer
++import com.github.jengelman.gradle.plugins.shadow.transformers.Transformer
++import org.gradle.api.file.FileTreeElement
++import shadow.org.apache.logging.log4j.core.config.plugins.processor.PluginProcessor.PLUGIN_CACHE_FILE
++import java.util.Date
++import java.text.SimpleDateFormat
 +
 +plugins {
 +    java
@@ -62,7 +67,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        attributes(mapOf(
 +            "Main-Class" to "org.bukkit.craftbukkit.Main",
 +            "Implementation-Title" to "CraftBukkit",
-+            "Implementation-Vendor" to Instant.now().epochSecond,
++            "Implementation-Vendor" to SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'").format(Date()), // Paper
 +            "Specification-Title" to "Bukkit",
 +            "Specification-Version" to project.version,
 +            "Specification-Vendor" to "Bukkit Team"
@@ -88,8 +93,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    transform(AppendingTransformer::class.java) {
 +        resource = "META-INF/services/java.sql.Driver"
 +    }
++    transform(ModifiedLog4j2PluginsCacheFileTransformer::class.java)
 +}
 +
 +tasks.test {
 +    exclude("org/bukkit/craftbukkit/inventory/ItemStack*Test.class")
 +}
++
++class ModifiedLog4j2PluginsCacheFileTransformer : Transformer by Log4j2PluginsCacheFileTransformer() {
++    override fun canTransformResource(element: FileTreeElement): Boolean {
++        return PLUGIN_CACHE_FILE == element.name || element.name == "Log4j2Plugins.dat"
++    }
++}