diff --git a/README.md b/README.md
index 1cb296c..6854525 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,8 @@
 
 A mobile flutter app for [FileBin](https://git.server-speed.net/users/flo/filebin/).
 
-Available on the [Play Store](https://play.google.com/store/apps/details?id=de.varakh.fbmobile).
+Available on the [Play Store](https://play.google.com/store/apps/details?id=de.varakh.fbmobile) and 
+[IzzyOnDroid](https://apt.izzysoft.de/fdroid/index/apk/de.varakh.fbmobile/).
 
 The main git repository is hosted at **[https://git.myservermanager.com/varakh/fbmobile](https://git.myservermanager.com/varakh/fbmobile)**.
 Other repositories are mirrors and pull requests, issues, and planning are managed there.
@@ -94,7 +95,7 @@ profiles. They're stored in a separate git repository and are encrypted.
 
 You need access to the git repository in which those private files reside. 
 
-#### Usage
+#### Usage / doing the actual release
 
 Go into the platform directory you want to build for, e.g. `ios/` or `android/` and then look into the
 `Fastlane` file which lanes are present. Run a lane via `fastlane <platform> <lane>`, e.g. use the
@@ -123,6 +124,9 @@ bundle exec fastlane android beta
 
 # deploy (push to app store)
 bundle exec fastlane android deploy
+
+# deploy (build signed fdroid large bundle [no target and abi split])
+bundle exec fastlane android build_production_froid
 ```
 
 ##### iOS
diff --git a/android/fastlane/Fastfile b/android/fastlane/Fastfile
index ee793ac..2962bc5 100644
--- a/android/fastlane/Fastfile
+++ b/android/fastlane/Fastfile
@@ -11,6 +11,11 @@ platform :android do
       sh("#{ENV['PWD']}/fastlane/buildAndroidProduction.sh")
     end
 
+    desc "Build Production fdroid"
+    lane :build_production_froid do
+      sh("#{ENV['PWD']}/fastlane/buildAndroidProductionFdroid.sh")
+    end
+
   desc "Build"
   lane :build do
     sh("#{ENV['PWD']}/fastlane/buildAndroid.sh")
diff --git a/android/fastlane/README.md b/android/fastlane/README.md
index ee3138f..156b973 100644
--- a/android/fastlane/README.md
+++ b/android/fastlane/README.md
@@ -31,6 +31,14 @@ Build Debug
 
 Build Production
 
+### android build_production_froid
+
+```sh
+[bundle exec] fastlane android build_production_froid
+```
+
+Build Production fdroid
+
 ### android build
 
 ```sh
diff --git a/android/fastlane/buildAndroidProductionFdroid.sh b/android/fastlane/buildAndroidProductionFdroid.sh
new file mode 100755
index 0000000..b2e2be2
--- /dev/null
+++ b/android/fastlane/buildAndroidProductionFdroid.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env sh
+
+cd ../../;
+flutter clean && \
+flutter pub get &&
+flutter packages pub run build_runner build --delete-conflicting-outputs;
+
+flutter build apk --release;