diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 8be60e9..7401455 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -11,8 +11,8 @@ android {
         applicationId = "solutions.tretter.githugandroid"
         minSdk = 26
         targetSdk = 34
-        versionCode = 74
-        versionName = "0.1.73"
+        versionCode = 75
+        versionName = "0.1.74"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
diff --git a/app/src/main/java/solutions/tretter/githugandroid/GameModels.kt b/app/src/main/java/solutions/tretter/githugandroid/GameModels.kt
index b3b1a34..bceae17 100644
--- a/app/src/main/java/solutions/tretter/githugandroid/GameModels.kt
+++ b/app/src/main/java/solutions/tretter/githugandroid/GameModels.kt
@@ -28,6 +28,7 @@ data class RepoState(
     val currentDir: String = ".",
     val tags: List<String> = emptyList(),
     val remotes: Map<String, String> = emptyMap(),
+    val config: Map<String, String> = emptyMap(),
 )
 
 data class Level(
@@ -53,6 +54,7 @@ val RepoStateSaver = listSaver<RepoState, Any>(
             state.currentDir,
             state.tags,
             state.remotes.flatMap { listOf(it.key, it.value) },
+            state.config.flatMap { listOf(it.key, it.value) },
         )
     },
     restore = { saved ->
@@ -63,6 +65,7 @@ val RepoStateSaver = listSaver<RepoState, Any>(
         val branchParts = saved[4] as List<*>
         val tags = saved[6] as List<*>
         val remoteParts = saved[7] as List<*>
+        val configParts = saved.getOrNull(8) as? List<*> ?: emptyList<Any>()
         RepoState(
             initialized = initialized,
             headBranch = headBranch,
@@ -81,6 +84,7 @@ val RepoStateSaver = listSaver<RepoState, Any>(
             currentDir = saved[5] as String,
             tags = tags.filterIsInstance<String>(),
             remotes = remoteParts.chunked(2).associate { (it[0] as String) to (it[1] as String) },
+            config = configParts.chunked(2).associate { (it[0] as String) to (it[1] as String) },
         )
     }
 )
@@ -117,6 +121,11 @@ object GitSandboxEngine {
             !repo.initialized -> repo to listOf("fatal: not a git repository")
             parts.size >= 2 && parts[1] == "help" -> repo to commandReferenceLines()
             parts.size >= 2 && parts[1] == "status" -> repo to statusLines(repo)
+            parts.size >= 4 && parts[1] == "config" -> {
+                val key = parts[2]
+                val value = parts.drop(3).joinToString(" ")
+                repo.copy(config = repo.config + (key to value)) to emptyList()
+            }
             parts.size >= 3 && parts[1] == "add" -> {
                 val target = parts[2]
                 if (target != "." && repo.files.none { it.name == target }) {
diff --git a/app/src/main/java/solutions/tretter/githugandroid/levels/CoreLevels.kt b/app/src/main/java/solutions/tretter/githugandroid/levels/CoreLevels.kt
index 4e3f215..abd3865 100644
--- a/app/src/main/java/solutions/tretter/githugandroid/levels/CoreLevels.kt
+++ b/app/src/main/java/solutions/tretter/githugandroid/levels/CoreLevels.kt
@@ -17,7 +17,9 @@ internal fun coreLevels(): List<Level> = listOf(
         hints = listOf("Use `git config user.name ...` and `git config user.email ...`."),
         commandSuggestions = listOf("git config user.name GitHug", "git config user.email githug@example.com"),
         setup = { RepoState(initialized = true, branches = mapOf("master" to 0)) },
-        validator = repoPredicate { it.initialized },
+        validator = repoPredicate { repo ->
+            repo.config["user.name"] == "GitHug" && repo.config["user.email"] == "githug@example.com"
+        },
     ),
     level(
         id = "add",