Resolve gravestone mod from curseforge maven

build.gradle

@@ -29,16 +29,19 @@ repositories {
         }
     }
 
-    // Modrinth maven (used for gravestone-mod jar to compile against).
+    // Curse Maven — used to fetch gravestone-mod by CurseForge file ID. The Modrinth
+    // maven was the obvious choice but it doesn't reliably serve POMs for gravestone
+    // 1.21.1 builds, which makes Gradle resolution fail with a 404. Curse Maven serves
+    // both the JAR and (synthesized) POM, so it just works.
     exclusiveContent {
         forRepository {
             maven {
-                name = 'Modrinth'
-                url = 'https://api.modrinth.com/maven'
+                name = 'Curse Maven'
+                url = 'https://cursemaven.com'
             }
         }
         filter {
-            includeGroup 'maven.modrinth'
+            includeGroup 'curse.maven'
         }
     }
 }
@@ -88,14 +91,24 @@ dependencies {
         }
     }
 
-    // Gravestone Mod — compile against the published jar from Modrinth.
-    // The shadowed jar contains relocated classes under de.maxhenkel.gravestone.*
-    // We only reference de.maxhenkel.gravestone.events.DeathEvents (target) and
-    // de.maxhenkel.gravestone.GraveUtils (referenced in @At target descriptor).
-    compileOnly "maven.modrinth:gravestone-mod:${gravestone_version}"
+    // Gravestone Mod via Curse Maven. The string format is:
+    //   curse.maven:<slug>-<projectId>:<fileId>
+    // - <slug>      = "gravestone-mod" (CurseForge URL slug)
+    // - <projectId> = 238551 (gravestone's CurseForge project ID — fixed for the project)
+    // - <fileId>    = the specific build's CurseForge file ID (changes per release)
+    //
+    // The default fileId 7099728 is the 1.21.1-1.0.19 NeoForge build, the same one
+    // used by the Corpse-Gravestone-Curios-Compat reference mod for 1.21.1. To use a
+    // newer 1.21.1 build, look it up at
+    //   https://www.curseforge.com/minecraft/mc-mods/gravestone-mod/files (filter to 1.21.1)
+    // and copy the numeric ID from the file's URL into the gravestone_curse_file_id
+    // property in gradle.properties. The mixin will keep working as long as gravestone
+    // doesn't refactor DeathEvents.playerDeath's signature (stable through 1.0.37).
+    compileOnly "curse.maven:gravestone-mod-238551:${gravestone_curse_file_id}"
 
-    // Optional fallback if the modrinth jar can't be resolved: drop a gravestone JAR
-    // into a 'libs/' folder in this project root, then uncomment the next line.
+    // Optional fallback if Curse Maven is unreachable from your network: drop a
+    // gravestone JAR into a 'libs/' folder at the project root, comment out the
+    // compileOnly above, and uncomment this:
     // compileOnly fileTree(dir: 'libs', include: ['*.jar'])
 }