diff --git a/BUILD.md b/BUILD.md
index 34c3ef5..ea2409c 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -81,10 +81,10 @@ Ensure you have a copy of `i2p.i2p` checked out adjacent to the
 building the jpackage, run the following command:
 
 ```sh
-git clone https://i2pgit.org/i2p-hackers/i2p.i2p
+git clone https://i2pgit.org/i2p-hackers/i2p.i2p "i2p.i2p-jpackage-mac"
 ```
 
-Change to the `i2p.i2p` directory and check out the release branch you want to
+Change to the `i2p.i2p-jpackage-mac` directory and check out the release branch you want to
 build a package for, e.g. `i2p-1.9.0`
 
 ```sh
diff --git a/README.md b/README.md
index 9b4b572..68263d1 100644
--- a/README.md
+++ b/README.md
@@ -9,11 +9,7 @@ JPackage scripts for packaging I2P on a Mac.
 
 ### Building
 
-1. Clone `i2p.i2p` as a sibling to this module in the directory `../i2p.i2p-jpackage-mac`
-1. Build it with `ant clean preppkg-osx-only`
-1. Set the `I2P_SIGNER` environment variable to a string identifying the signer.
-1. Set the `I2P_BUILD_NUMBER` environment variable to some integer >= 1
-1. Run `build.sh`
+1. See [BUILD.md](BUILD.md)
 
 ### How does it work
 
@@ -24,29 +20,3 @@ In order to build an AppBundle that can work from anywhere, it is necessary to u
 1. Copies the contents of `../i2p.i2p/pkg-temp` inside the AppBundle, except for the `jars` directory
 1. Signs the AppBundle
 1. Invokes JPackage again to build the final .dmg
-
-### Notarization
-
-1. You need an "app-specific password" which you can create at https://appleid.apple.com
-2. Execute 
-```
-xcrun notarytool store-credentials "$AC_PASSWORD"
-               --apple-id "$AC_USERNAME"
-               --team-id "$WWDRTeamID"
-               --password "$secret_2FA_password"
-```
- - In this example command:
- - `AC_PASSWORD` is the name of the credentials config.
- - `AC_USERNAME` is the username of the Apple Account.
- - `WWDRTeamID` is the developer/team ID available from the Apple Account.
- - `secret_2FA_Password` is the app-specific password you set up in the first step.
-3. Periodically execute the following to check the progress of the notarisation:
-```
-xcrun altool --eval-info <the long UUID string> -u <your Apple id>
-````
-4. If that returns success, staple the notarization to the dmg:
-```
-xcrun stapler staple <name of the .dmg>
-```
-
-- [This StackOverflow thread contains invaluable information about how to successfully notarize jpackage-based software](https://stackoverflow.com/questions/60953329/code-signing-notarization-using-jpackage-utility-isnt-working-on-macos)
diff --git a/build.sh b/build.sh
index 85bcd44..4e95350 100755
--- a/build.sh
+++ b/build.sh
@@ -45,9 +45,22 @@ echo "cleaning"
 ARCH=$(uname -m)
 HERE=$PWD
 I2P_SRC=$HERE/../i2p.i2p-jpackage-mac/
+
+if [ ! -d "$I2P_SRC" ]; then
+    git clone https://i2pgit.org/i2p-hackers/i2p.i2p "$I2P_SRC"
+fi
+
 I2P_JARS=$HERE/../i2p.i2p-jpackage-mac/pkg-temp/lib
 I2P_PKG=$HERE/../i2p.i2p-jpackage-mac/pkg-temp
 
+if [ ! -d "$I2P_PKG" ]; then
+    cd "$I2P_SRC"
+    git pull --tags
+    git checkout "$I2P_VERSION"
+    ant clean preppkg-osx-only
+fi
+cd "$HERE"
+
 mkdir build
 
 echo "compiling custom launcher and update processor"
diff --git a/config.sh b/config.sh
index 17bca79..639e832 100644
--- a/config.sh
+++ b/config.sh
@@ -23,16 +23,22 @@ fi
 if [ -z $I2P_SIGNER ]; then
     # This is the team ID of the Apple account associated with the app. It is used to sign the DMG.
     # it is a unique ID which is a short, random-looking string.
+    # OR
+    # the sha256 fingerprint of the cert(recommended)
     echo "I2P_SIGNER not set, signing will not work"
 fi
 if [ -z $I2P_CODE_SIGNER ]; then
     # This is the code signing ID of the team associated with the Apple Account. it is used to sign the libraries.
     # it is a unique ID which is a short, random-looking string.
+    # OR
+    # the sha256 fingerprint of the cert(recommended)
     echo "I2P_CODE_SIGNER not set, signing will not work"
 fi
 if [ -z "$I2P_SIGNER_USERPHRASE" ]; then
     # This is an the phrase identifying the third party developer(I2P) in the following form:
     # 3rd Party Mac Developer Application: John Smith (ABCDEFGHIJ)
+    # OR
+    # the sha256 fingerprint of the cert(recommended)
     echo "I2P_SIGNER_USERPHRASE not set, signing will not work"
 fi