diff --git a/metadata/com.chooloo.www.koler.yml b/metadata/com.chooloo.www.koler.yml
index 5b63349568..fbf7b6ce32 100644
--- a/metadata/com.chooloo.www.koler.yml
+++ b/metadata/com.chooloo.www.koler.yml
@@ -98,13 +98,17 @@ Builds:
 
   - versionName: v1.6.1
     versionCode: 82
-    disable: https://github.com/Chooloo/koler/issues/509
     commit: 518b3c0a4941584f232cbf37a612bebb998cf36d
     subdir: koler
+    sudo:
+      - apt-get update
+      - apt-get install -y openjdk-17-jdk-headless
+      - update-java-alternatives -a
     gradle:
       - yes
+    prebuild: sed -i -e 's/VERSION_18/VERSION_17/g' -e 's/(18)/(17)/' build.gradle
 
-AutoUpdateMode: None
+AutoUpdateMode: Version
 UpdateCheckMode: Tags
 UpdateCheckData: koler/build.gradle|versionCode\s(\d+)||
 CurrentVersion: v1.6.1
diff --git a/metadata/com.tuntori.mightieramp.yml b/metadata/com.tuntori.mightieramp.yml
index ba28331bdc..fbf136abfc 100644
--- a/metadata/com.tuntori.mightieramp.yml
+++ b/metadata/com.tuntori.mightieramp.yml
@@ -144,8 +144,7 @@ Builds:
 
   - versionName: 1.0.6
     versionCode: 49
-    disable: https://github.com/tuntorius/mightier_amp/issues/67
-    commit: f7d282553063f4ae30213c301b030bd51aa26103
+    commit: 238102cda9cce24bb8e4aa2dcb4697660d7986fc
     output: build/app/outputs/flutter-apk/app-release.apk
     srclibs:
       - flutter@3.10.6
diff --git a/metadata/org.hlwd.bible.yml b/metadata/org.hlwd.bible.yml
index a135e98a74..6cceaafae5 100644
--- a/metadata/org.hlwd.bible.yml
+++ b/metadata/org.hlwd.bible.yml
@@ -492,8 +492,13 @@ Builds:
     versionCode: 20230721
     commit: 6c963cb625f766bbe5a7d251c0b335e0f1715155
     subdir: app
+    sudo:
+      - apt-get update
+      - apt-get install -y openjdk-17-jdk-headless
+      - update-java-alternatives -a
     gradle:
       - yes
+    prebuild: sed -i -e 's/-XX:MaxPermSize=512m//' ../gradle.properties
 
 AutoUpdateMode: Version
 UpdateCheckMode: Tags
diff --git a/metadata/org.sw24softwares.starkeverben.yml b/metadata/org.sw24softwares.starkeverben.yml
index f796fdbb29..320f20634b 100644
--- a/metadata/org.sw24softwares.starkeverben.yml
+++ b/metadata/org.sw24softwares.starkeverben.yml
@@ -103,6 +103,7 @@ Builds:
     subdir: app
     gradle:
       - yes
+    prebuild: sed -i -e "/android {/a lint { abortOnError false }" build.gradle
 
 AutoUpdateMode: Version
 UpdateCheckMode: Tags
diff --git a/metadata/org.xcsoar.yml b/metadata/org.xcsoar.yml
index 5b63e2fabf..5c5c64c087 100644
--- a/metadata/org.xcsoar.yml
+++ b/metadata/org.xcsoar.yml
@@ -546,6 +546,7 @@ Builds:
 
   - versionName: '7.37'
     versionCode: 158
+    disable: https://github.com/XCSoar/XCSoar/issues/1272
     commit: 33fbf7be6d14a9b067dec92a703f6f4a30515665
     submodules: true
     sudo: