diff --git a/README.md b/README.md
index 0d62d5893319d16d85353b35d42efcd028759bbf..9cb0e4864f8fb957ceefff09b534388b4a854be8 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 Warning: This code uses the 433,5 MHz as well as other potentially country-specific settings. Lookup if this is allowed in your country and change the details in src/PinedioLoraRadio.cpp!
 
+This is a heavily modified fork from https://codeberg.org/JF002/pinedio-lora-driver .
+
 # Board-Docs
 [LoRa USB adapter](https://wiki.pine64.org/wiki/Pinedio#USB_adapter)
 [Pinephone backplate](https://wiki.pine64.org/wiki/Pinedio#Pinephone_backplate).
diff --git a/testapp/README b/testapp/README
new file mode 100644
index 0000000000000000000000000000000000000000..f88abcc7c81a8b9116d5365091f718a4c8a2eec7
--- /dev/null
+++ b/testapp/README
@@ -0,0 +1,4 @@
+main: sends a Message and then constantly waits for messages
+Tx: constantly sends messages
+
+Call the executables: LD_LIBRARY_PATH=../src/ ./main