Adding debug instructions for libndk_translator and to build ReDroid with GApps (#112)

android-builder-docker/README.md

@@ -50,7 +50,38 @@ sudo tar --xattrs -c vendor -C system --exclude="vendor" . | docker import -c 'E
 tar --xattrs -c -C root . | docker import -c 'ENTRYPOINT ["/init", "qemu=1", "androidboot.hardware=redroid"]' - redroid-dev
 ```
 
+## Build with GApps
+
+You can build a ReDroid image with your favorite GApps package if you need, for simplicity there is an example with Mind The Gapps.
+
+This is not different from the normal building process, except for some small things, like:
+
+- When following the "Sync Code" paragraph,  after running the repo sync, add this manifest under .repo/local_manifests/mindthegapps.xml, for the specific ReDroid revision selected. 
+
+  For example, for Redroid 11 the revision is 'rho', and for Redroid 12 is 'sigma', and this is the expected manifest:
+
+  ```xml
+  <?xml version="1.0" encoding="UTF-8"?>
+  <manifest>
+          <remote name="mtg" fetch="https://gitlab.com/MindTheGapps/" />
+          <project path="vendor/gapps" name="vendor_gapps" revision="sigma" remote="mtg" />
+  </manifest>
+  ```
+
+- Add the path to the mk file corresponding to your selected arch to device/redroid/redroid_ARCHITECTURE/device.mk , for example we want x86_64 arch (x86 for ReDroid 11 as in 'rho' Mind The Gapps as only x86 GApps)
+
+  ```makefile
+  $(call inherit-product, vendor/gapps/x86_64/x86_64-vendor.mk)
+  ```
+
+  putting this, modified for the corresponding architecture you need. So change 'x86_64' with arm64 if you need arm64 GApps.
+
+  Resync the repo with a new 'repo sync -c --no-tags' and continue following the building guide exactly as before.
+
+- OPTIONAL but recommended. While importing the image, change the entrypoint to 'ENTRYPOINT ["/init", "qemu=1", "androidboot.hardware=redroid", "ro.setupwizard.mode=DISABLED"]' , so you avoid doing it manually at every container start, or if you want set ro.setupwizard.mode=DISABLED at container start, skipping the GApps setup wizard at ReDroid boot.
+
 ## Note
+
 ```bash
 # intent changes for redroid-10 (copyfile hook during repo sync), DO NOT PANIC
 # [Android Clang/LLVM Toolchain](https://github.com/remote-android/platform_manifests/tree/llvm-toolchain-redroid-10.0.0)