diff --git a/bin/mgit b/bin/mgit
index 35bd2ca..8411ea0 100755
--- a/bin/mgit
+++ b/bin/mgit
@@ -26,6 +26,8 @@ echo "
      and your personal fork as a remote, if you provide the username argument.
   mgit status
      see the status of the build area, including dependency issues
+  mgit list
+     list the subdirectories of Offline which can be added locally
   mgit add PACKAGE <PACKAGE ...>
      add the PACKAGE subdirectory
   mgit rm PACKAGE <PACKAGE ..>
@@ -73,8 +75,7 @@ mg_test_clean() {
 
     # check for unpushed commits
     local branch=$( mg_branch )
-    local test3=$( git diff --shortstat origin/${branch}..HEAD )
-    #echo $branch $test3 > s.txt
+    local test3=$( git log --branches --not --remotes )
     if [ -n "$test3" ]; then
 	[ -n "$ret" ] && ret="${ret},"
 	ret="${ret}unpushed commits"
@@ -124,13 +125,16 @@ mg_init() {
     echo "/.gitignore" >>  .git/info/sparse-checkout
 
     local branch=$( mg_branch )
-    if [ -n "$branch" ] ; then
+
+    # if you default to master, it doesn't point to a commit so you can't check it out
+    local goodbranch=true
+    [[ -z "$branch" || -z "$(git branch -al $branch)" ]] && goodbranch=false
+    if [ "$goodbranch" == "true" ] ; then
 	git checkout $branch || exit 1
     else
 	git checkout --no-track -b mgit_init_branch mu2e/master || exit 1
     fi
     git read-tree --reset -u HEAD || exit 1
-    #git read-tree --empty || exit 1
 
     return 0
 
@@ -208,6 +212,16 @@ mg_status() {
 }
 
 
+#
+# list packages you could add
+#
+mg_list() {
+
+    git ls-files $DD | awk -F '/' '{print $1}' | sort | uniq
+
+}
+
+
 #
 # add packages
 #
@@ -339,6 +353,9 @@ case "$command" in
     init)
 	mg_init $@
 	;;
+    list)
+	mg_list $@
+	;;
     add)
 	mg_add $@
 	;;
diff --git a/config/p007 b/config/p007
new file mode 100644
index 0000000..4b4f0a2
--- /dev/null
+++ b/config/p007
@@ -0,0 +1,85 @@
+
+# the lines starting with two hashes are documentation which can be printed
+## 5/18/2021 art v3_09_00, including updates to mu2e_artdaq_core
+
+#
+# use preferred build type, if none requested
+#
+if [ -z "$MUSE_BUILD" ]; then
+    export MUSE_BUILD=prof
+    if [ $MUSE_VERBOSE -gt 0 ]; then 
+        echo "INFO - MUSE_BUILD defaulting to $MUSE_BUILD in $MUSE_ENVSET"
+    fi
+fi
+
+#
+# use preferred compiler, if none requested
+#
+if [ -z "$MUSE_COMPILER_E" ]; then
+    export MUSE_COMPILER_E=e20
+    if [ $MUSE_VERBOSE -gt 0 ]; then 
+        echo "INFO - MUSE_COMPILER_E defaulting to $MUSE_COMPILER_E in $MUSE_ENVSET"
+    fi
+fi
+
+#
+# use preferred python flag, if none requested
+#
+if [ -z "$MUSE_PYTHON" ]; then
+    export MUSE_PYTHON=p392
+    if [ $MUSE_VERBOSE -gt 0 ]; then 
+        echo "INFO - MUSE_PYTHON defaulting to $MUSE_PYTHON in $MUSE_ENVSET"
+    fi
+fi
+
+
+# build tools
+setup cetpkgsupport v1_14_01
+setup -B  cetbuildtools   v8_07_01
+setup -B  valgrind   v3_17_0 
+setup -B  cmake   v3_20_0 
+
+# art 
+# these three lines must be coordinated
+setup -B art_root_io v1_08_00 -q${MUSE_BUILD}:+${MUSE_COMPILER_E}
+export MUSE_ART=s108
+setup -B  gallery   v1_18_01  -q+${MUSE_BUILD}:+${MUSE_COMPILER_E}
+
+
+#
+# geant4
+#
+GFLAGS=+${MUSE_BUILD}:+${MUSE_COMPILER_E}
+if [ -z "$MUSE_G4ST" ]; then
+   GFLAGS=${GFLAGS}:+mt
+fi
+if [ -n "$MUSE_G4VG" ]; then
+   GFLAGS=${GFLAGS}:+vg
+fi
+if [ "$MUSE_G4VIS" == "qt" ]; then
+   GFLAGS=${GFLAGS}:+qt
+fi
+
+setup -B geant4 v4_10_7_p01c -q${GFLAGS}
+
+#
+# everything else
+#
+
+setup -B xerces_c v3_2_3   -q +${MUSE_BUILD}:+${MUSE_COMPILER_E}
+setup -B mu2e_artdaq_core v1_05_09_01 -q +${MUSE_BUILD}:+${MUSE_COMPILER_E}:+${MUSE_ART}
+setup -B heppdt   v03_04_02 -q +${MUSE_BUILD}:+${MUSE_COMPILER_E}
+setup -B BTrk   v1_02_31  -q +${MUSE_BUILD}:+${MUSE_COMPILER_E}:+${MUSE_PYTHON}
+setup -B KinKal  v00_01_06a  -q +${MUSE_BUILD}:+${MUSE_COMPILER_E}:+${MUSE_PYTHON}
+setup -B cry   v1_7n  -q +${MUSE_BUILD}:+${MUSE_COMPILER_E}
+setup -B gsl v2_6a
+setup curl v7_64_1
+setup cryptopp v08_02_00 -q +${MUSE_BUILD}:+${MUSE_COMPILER_E}
+setup -B scons v3_1_2a  -q +${MUSE_PYTHON}
+setup -B gdb v10_1
+
+
+# Local Variables:
+# mode: sh
+# End:
+# vi:syntax=sh