diff --git a/README.md b/README.md
index 6c2003f..504bc1c 100644
--- a/README.md
+++ b/README.md
@@ -2,12 +2,7 @@
 
 This action builds an validates Arch Linux package.
 The `PKGBUILD` and `.SRCINFO` files should be under a subdirectory named the same as the `pkgbuild` of the package.
-
-This assumption made is so that this action works well with [aurpublish] (_untested in this fork yet_).
-
-This version is a fork from the original [arch-pkgbuild-builder](https://github.com/2m/arch-pkgbuild-builder).
-
-It differs in that the `PKGBUILD` and related files do not need to be place in the root of the github workspace.
+This assumption is made so this action works well with [aurpublish].
 
 [aurpublish]: https://github.com/eli-schwartz/aurpublish
 
@@ -28,10 +23,10 @@ It differs in that the `PKGBUILD` and related files do not need to be place in t
 Verifies and builds the package.
 
 ```yml
-uses: grumlimited/arch-pkgbuild-builder@v1
+uses: 2m/arch-pkgbuild-builder@v1
 with:
   target: 'pkgbuild'
-  pkgname: 'data/arch/authenticator-rs/PKGBUILD'
+  pkgname: 'ucm-bin'
 ```
 
 ### srcinfo
@@ -39,7 +34,7 @@ with:
 Verifies if the `.SRCINFO` is up to date with the `PKGBUILD`.
 
 ```yml
-uses: grumlimited/arch-pkgbuild-builder@v1
+uses: 2m/arch-pkgbuild-builder@v1
 with:
   target: 'srcinfo'
   pkgname: 'ucm-bin'
@@ -50,7 +45,7 @@ with:
 Installs the package and runs a given `command`.
 
 ```yml
-uses: grumlimited/arch-pkgbuild-builder@v1
+uses: 2m/arch-pkgbuild-builder@v1
 with:
   target: 'run'
   pkgname: 'ucm-bin'
@@ -61,4 +56,4 @@ with:
 
 So far this action is used by the following packages:
 
-* [authenticator-rs](https://github.com/grumlimited/authenticator-rs)
+* [ucm-bin](https://github.com/2m/ucm-bin-pkgbuild)
diff --git a/action.yml b/action.yml
index 5976bf0..931df57 100644
--- a/action.yml
+++ b/action.yml
@@ -6,8 +6,8 @@ branding:
   color: 'blue'
 
 inputs:
-  pkgbuild:
-    description: 'Path to file PKGBUILD. Assumes to be placed in a directory with the name of package, ie /path/to/pkgname'
+  pkgname:
+    description: 'Path to DIRECTORY where the PKGBUILD file is. Assumes the directory is the name of package, ie /path/to/pkgname/'
     required: true
   target:
     description: 'Validation target. Can be one of: "pkgbuild", "srcinfo"'
@@ -16,11 +16,15 @@ inputs:
   command:
     description: 'Command to run after package installation'
     required: false
+  debug:
+    description: 'Turns debugging on'
+    required: false
 
 runs:
   using: 'docker'
   image: 'Dockerfile'
   args:
     - ${{ inputs.target }}
-    - ${{ inputs.pkgbuild }}
+    - ${{ inputs.pkgname }}
     - ${{ inputs.command }}
+    - ${{ inputs.debug }}
diff --git a/entrypoint.sh b/entrypoint.sh
index 3b44062..0102923 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,21 +1,38 @@
 #!/bin/sh -l
 
+DEBUG=$4
+
+if [[ -n $DEBUG  && $DEBUG = true ]]; then
+    set -x
+fi
+
 target=$1
-pkgbuild=$2
+pkgname=$2
 command=$3
 
 # assumes that package files are in a subdirectory
 # of the same name as "pkgname", so this works well
 # with "aurpublish" tool
 
-pkgbuild_dir=$(dirname $(readlink $pkgbuild -f))
-cd $pkgbuild_dir || exit
+if [[ ! -d $pkgname ]]; then
+    echo "$pkgname should be a directory."
+    exit 1
+fi
+
+if [[ ! -e $pkgname/PKGBUILD ]]; then
+    echo "$pkgname does not contain a PKGBUILD file."
+    exit 1
+fi
+
+pkgbuild_dir=$(readlink $pkgname -f) # nicely cleans up path, ie. ///dsq/dqsdsq/my-package//// -> /dsq/dqsdsq/my-package
 
 # '/github/workspace' is mounted as a volume and has owner set to root
-# set the owner to the 'build' user, so it can access package files
+# set the owner of $pkgbuild_dir  to the 'build' user, so it can access package files.
 sudo chown -R build $pkgbuild_dir
 
-pkgname=$(basename $pkgbuild_dir)
+cd $pkgbuild_dir
+
+pkgname="$(basename $pkgbuild_dir)" # keep quotes in case someone passes in a directory path with whitespaces...
 
 install_deps() {
     # install make and regular package dependencies