diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..a2004489d9a83c7f1b05e066e018c524425fbc11
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+docker_tuto-gdb-py.tar
diff --git a/Dockerfile b/Dockerfile
index 38417be28f619c47e78aa83a9321d438bcd2afd0..22176af01db10a9db17d5445bac0271328acc351 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,11 +10,11 @@ RUN pacman --noconfirm --needed -Sy gdb strace libdwarf make binutils gcc vim \
     && mkdir -p /var/cache/pacman/pkg/
 
 
-RUN mkdir -p /home/gdb.py
-WORKDIR /home/gdb.py
+RUN mkdir -p /home/gdb
+WORKDIR /home/gdb
 
-COPY home /home/gdb.py
-COPY Dockerfile /home/gdb.py
+COPY home /home/gdb
+COPY Dockerfile /home/gdb
 
-RUN date > /home/gdb.py/.version
-VOLUME /home/gdb.py
+RUN date > /home/gdb/.version
+VOLUME /home/gdb
diff --git a/home/exercices.md b/home/exercices.md
index 1ea2adaf1a1889acb5fef1a757ec7a300ac0ab8c..97b21f24eb3669e90022e7b1c86692f990415fd9 100644
--- a/home/exercices.md
+++ b/home/exercices.md
@@ -6,7 +6,7 @@ Preliminary setup
 
 Prepare and launch the docker container:
 
-    HOST_DIR=/home/kevin/gdb.py_debug_data/ # absolute path required ; create it manually before
+    HOST_DIR=/home/kevin/gdb.py_debug_data/ # absolute path required
     docker run -it -v $HOST_DIR:/home/gdb.py/host -e GROUPID=$(id -g) -e USERID=$(id -u) --cap-add sys_ptrace kpouget/tuto-gdb.py
 
 Then if you want to share the data with your host, work from `~/host`, otherwise stay in `~`:
@@ -219,4 +219,4 @@ Now you're know the basics of GDB scripting ! Get back to the slides *Part 2*, t
 2. Return true breakpoint
 3. Register watchpoint
 4. Step into next call
-5. Faking function execution
+5. Faking function execution
\ No newline at end of file
diff --git a/home/init.sh b/home/init.sh
index f7d4c114facdc26ff487705dc0a951bb210ff3bb..76e51297d2565cf6a092dbe833accf73b32034e9 100644
--- a/home/init.sh
+++ b/home/init.sh
@@ -20,8 +20,8 @@ then
   echo "       Please run docker as follows:"
   cat <<EOF
 
-HOST_DIR=$HOME/gdb.py_data # create it first !
-docker run -it -v \$HOST_DIR:/home/gdb.py/host -e GROUPID=\$(uid -g) -e USERID=\$(uid -u) --cap-add sys_ptrace kpouget/tuto-gdb.py
+HOST_DIR=\$HOME/gdb_data # create it first !
+docker run -it -v \$HOST_DIR:/home/gdb/host -e GROUPID=\$(id -g) -e USERID=\$(id -u) --cap-add sys_ptrace kpouget/tuto-gdb.py
 EOF
    exec bash
 fi
@@ -29,10 +29,10 @@ fi
 ##### admin stuff #####
 
 echo "root:root" | chpasswd && echo "INFO: root password set to 'root'."
-groupadd --gid $GROUPID jcf --non-unique
-useradd --uid $USERID --gid $GROUPID jcf
-chown jcf:jcf /home/jcf/ -R
-echo "INFO: Docker image version $(cat /home/jcf/.version)"
+groupadd --gid $GROUPID gdb --non-unique
+useradd --uid $USERID --gid $GROUPID gdb
+chown gdb:gdb /home/gdb/ -R
+echo "INFO: Docker image version $(cat /home/gdb/.version)"
 ##### check strace #####
 
 strace ls &>/dev/null
@@ -43,13 +43,13 @@ fi
 
 ##### prepare host #####
 
-HOST_MNT=/home/jcf/host
+HOST_MNT=/home/gdb/host
 if [ -z "$(ls -A $HOST_MNT/dwarf $HOST_MNT/python 2>/dev/null)" ] 
 then
     echo "INFO: Running './prepare_host.sh' to populate $HOST_MNT host-shared directory."
-    su jcf -c ./prepare_host.sh
+    su gdb -c ./prepare_host.sh
 fi
 
 echo "INFO: Read ~/README or ~/presentation.pdf for usage details"
 
-exec su jcf
+exec su gdb
diff --git a/home/prepare_host.sh b/home/prepare_host.sh
index bc31f7995b8e32dd47faf0a7dfc1c89876309e61..03719babd6d04f8e04293177018c22388e5d6702 100755
--- a/home/prepare_host.sh
+++ b/home/prepare_host.sh
@@ -1,6 +1,6 @@
 #! /usr/bin/bash
 
-HOST_MNT=/home/jcf/host
+HOST_MNT=/home/gdb/host
 
 mkdir -p $HOST_MNT
 
diff --git a/home/presentation.pdf b/home/presentation.pdf
index 1852fa63b5c6792d75baef7e4b34a28b10f99d25..eaf52cc5c3fca14207d9816572fc3c76b431c47c 100644
Binary files a/home/presentation.pdf and b/home/presentation.pdf differ
diff --git a/tuto-gdb-py.tgz b/tuto-gdb-py.tgz
index e7217623abbf0d37993cbae7694e02a8cb6af86e..162f6770d60b66fad391e3b1ee463e47a203aa53 100644
Binary files a/tuto-gdb-py.tgz and b/tuto-gdb-py.tgz differ