diff --git a/dot_scripts/install_bach.sh b/dot_scripts/install_bach.sh
new file mode 100755
index 0000000..4dd810d
--- /dev/null
+++ b/dot_scripts/install_bach.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+echo "Installing Bach (Bash Testing Framework)"
+
+sudo curl -L https://raw.githubusercontent.com/bach-sh/bach/master/bach.sh -o /usr/local/bin/bach
+chmod +x "$_"
diff --git a/dot_scripts/pythondeps.sh b/dot_scripts/pythondeps.sh
index 7d71923..68af792 100755
--- a/dot_scripts/pythondeps.sh
+++ b/dot_scripts/pythondeps.sh
@@ -8,7 +8,8 @@ sudo python3 get-pip.py
 case "$(uname -s)" in
 Darwin)
     echo "(Mac OS X) Updating PATH for loading pip user installed packages"
-    ln -snf /usr/local/opt/python/bin//pip3.8 /usr/local/bin/pip3
+    ln -snf /usr/local/lib/python3.9/site-packages/pip /usr/local/bin/pip21
+    ln -snf /usr/local/lib/python3.9/site-packages/pip /usr/local/bin/pip3
     export PATH="$PATH:/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/bin/:/usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7/bin:/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/bin:/usr/local/opt/python/bin/"
     ;;
 esac
diff --git a/dot_scripts/rustdeps.sh b/dot_scripts/rustdeps.sh
index 7d42bee..98f6e30 100755
--- a/dot_scripts/rustdeps.sh
+++ b/dot_scripts/rustdeps.sh
@@ -3,3 +3,9 @@
 echo "Installing Rust compiler and package manager"
 rustup-init -y
 rustup component add rustfmt
+
+git clone git@github.com:njaremko/podcast.git "$HOME/Code/podcast"
+cd "$HOME/Code/podcast" || exit
+cargo install --path=.
+mkdir "$ZSH_CUSTOM/plugins/podcast" && podcast completion zsh >"$ZSH_CUSTOM/plugins/podcast/_podcast"
+cd "$HOME" || exit
diff --git a/dot_zsh_functions b/dot_zsh_functions
index efa0dc9..762eabb 100644
--- a/dot_zsh_functions
+++ b/dot_zsh_functions
@@ -43,6 +43,9 @@ function substring() {
 function browse() {
     open -na "$DEFAULT_BROWSER" --args "$1"
 }
+function incognito() {
+    open -na "$DEFAULT_BROWSER" --args --incognito "$1"
+}
 function google() {
     browse "https://www.google.com/search?q=$*"
 }
@@ -139,9 +142,7 @@ function whichfunc() {
     whence -v $1
     type -a $1
 }
-
-source $HOME/Code/dotfiles/dot_scripts/suggest_readable_parameters.sh
-
+source "$HOME/Code/dotfiles/dot_scripts/suggest_readable_parameters.sh"
 # TODO : suggest spelling fixes
 function suggest_code_refactoring() {
     #inspired by : \grep 'awk '\''{$1=$1};1'\' $HOME/Code/dotfiles/dot_zsh*
@@ -166,7 +167,7 @@ function suggest_aliases() {
     local search_input_size=${1:-'50'}
     header "alias recommendations"
     while read -r line; do
-        local matching_aliases=$(ag "$line")
+        local matching_aliases=$(ag --multiline "$line")
         if [ ! -z "$matching_aliases" ]; then
             success "there is an alias for $line :"
             while read -r alias_line; do
@@ -224,7 +225,7 @@ source $HOME/Code/dotfiles/dot_scripts/sendmail.sh
 function mute_device() {
     local current_device=$(SwitchAudioSource -c)
     local target_device="$1"
-    if SwitchAudioSource -a | grep "$target_device" 1>/dev/null; then
+    if SwitchAudioSource -a G "$target_device" 1>/dev/null; then
         SwitchAudioSource -s "$1" 1>/dev/null
         osascript -e 'set volume output muted true'
         success "device $target_device muted"
@@ -232,14 +233,14 @@ function mute_device() {
         if [ "$current_device" != "$target_device" ]; then
             arrow "switching back to $current_device"
         fi
-        arrow "currently using $target_device"
+        arrow "currently using $current_device"
     else
         error "sound device not found : $target_device (maybe it's disconnected ?)"
     fi
 }
 function switch_device() {
     local target_device="$1"
-    if SwitchAudioSource -a | grep "$target_device" 1>/dev/null; then
+    if SwitchAudioSource -a G "$target_device" 1>/dev/null; then
         if SwitchAudioSource -s "$1" 1>/dev/null; then
             success "switched to $target_device"
             unmute
@@ -364,12 +365,22 @@ function checkenlist() {
 }
 
 function checkenremote() {
-    local target_url=$(echo "$1" | sed 's/github.com/raw.githubusercontent.com/g' | sed 's;blob/;;')
-    if [[ "$target_url" =~ "githubusercontent.com" && ! "$target_url" =~ "README" ]]; then
-        target_url=$(echo "$target_url/master/README.md")
+    local target_url="$1"
+    if [[ ! "$target_url" =~ "githubusercontent.com" && ! "$target_url" =~ "README" && ! "$target_url" =~ "readme" ]]; then
+        arrow "no readme found"
+        local guess_readme_url=$(http "$target_url" | \grep -ioP 'href="\K.*REAdme.(md|rst)(?=")' | head -1)
+        arrow "does https://github.com${guess_readme_url} exist "
+        arrow "guess url : $guess_readme_url"
+        if http --check-status "https://github.com${guess_readme_url}" &>/dev/null; then
+            target_url="https://github.com${guess_readme_url}"
+            arrow "target url changed to ${target_url}"
+        else
+            arrow "https://github.com${guess_readme_url} do not exist"
+        fi
     fi
+    target_url=$(echo "$target_url" | sed 's/github.com/raw.githubusercontent.com/g' | sed 's;blob/;;')
     arrow "checking $target_url"
-    curl --location --insecure --silent "$target_url" > /tmp/file && checkenlist /tmp/file && write-good --no-passive /tmp/file && proselint /tmp/file && \cat /tmp/file > alex -q --stdin
+    curl --location --insecure --silent "$target_url" > /tmp/file && checkenlist /tmp/file #&& write-good --no-passive /tmp/file && proselint /tmp/file && \cat /tmp/file > alex -q --stdin
 }
 
 # Time management
@@ -610,7 +621,8 @@ function fork() {
     else
         gitperso
     fi
-    checkenlist README*
+    checkreadme
+    # TODO : check all the codebase for spelling mistakes in info/debug/error messages etc.
 }
 function git-project() {
     if [ -d "$REPO_PATH" ]; then
@@ -749,3 +761,13 @@ function runiflucky() {
         fi
     fi
 }
+function aws-login() {
+    profile_list=$(aws-vault list --profiles | fzf --ansi)
+    login_url=$(export AWS_SESSION_TOKEN_TTL=3h && aws-vault login $profile_list -s)
+    echo "$login_url $1"
+    browse "$login_url $1" 1>/dev/null 2>&1 &
+}
+function aws-exec() {
+    profile_list=$(aws-vault list --profiles | fzf --ansi)
+    aws-vault exec $profile_list
+}
diff --git a/dot_zshrc b/dot_zshrc
index 9e17385..197c362 100644
--- a/dot_zshrc
+++ b/dot_zshrc
@@ -16,6 +16,7 @@ fi
 # load a random theme each time oh-my-zsh is loaded, in which case,
 # to know which specific one was loaded, run: echo $RANDOM_THEME
 # See https://github.com/robbyrussell/oh-my-zsh/wiki/Themes
+#
 ZSH_THEME="powerlevel10k/powerlevel10k"
 ZSH_COLORIZE_STYLE="monokai"
 
@@ -96,7 +97,7 @@ POWERLEVEL9K_CONTEXT_DEFAULT_BACKGROUND='clear'
 # Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/
 # Example format: plugins=(rails git textmate ruby lighthouse)
 # Add wisely, as too many plugins slow down shell startup.
-plugins=(reminder common-aliases extract git sdk zsh-syntax-highlighting zsh-autosuggestions ansible brew colorize docker pipenv pip python terraform aws helm kubectl)
+plugins=(reminder common-aliases extract git sdk zsh-syntax-highlighting zsh-autosuggestions ansible brew colorize docker pipenv pip python terraform aws helm kubectl fzf alias-finder)
 source $ZSH/oh-my-zsh.sh
 
 # User configuration
@@ -136,6 +137,13 @@ export GIT_PERSONAL_EMAIL=""
 export GIT_PERSONAL_USER=""
 export GIT_PRO_EMAIL=""
 export GIT_PRO_USER=""
+export GMAIL_APP_USER=""
+export GMAIL_APP_PASSWORD=""
+export KINDLE_ACCOUNT_EMAIL="" # e.g : john.doe@kindle.com
+export PRINCIPAL_ACCOUNT_EMAIL="" # e.g : john.doe@gmail.com
+export PRINCIPAL_ACCOUNT_FULLNAME="" # e.g : John Doe
+export BB_TOKEN="" # Bitbucket server PAT (personal access token)
+export GITHUB_TOKEN="" # GitHub PAT (personal access token)
 
 source "$HOME/Code/dotfiles/dot_aliases/misc.sh"
 
@@ -171,7 +179,8 @@ export SDKMAN_DIR="$HOME/.sdkman"
 
 case "$(uname -s)" in
    Darwin)
-    ln -snf /usr/local/opt/python/bin//pip3.8 /usr/local/bin/pip3
+    ln -snf /usr/local/lib/python3.9/site-packages/pip /usr/local/bin/pip21
+    ln -snf /usr/local/lib/python3.9/site-packages/pip /usr/local/bin/pip3
      export PATH="$PATH:/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/bin/:/usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7/bin:/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/bin"
      ;;
 esac
diff --git a/private_dot_ssh/config b/private_dot_ssh/config
index b1d54f3..6e01166 100644
--- a/private_dot_ssh/config
+++ b/private_dot_ssh/config
@@ -5,3 +5,6 @@ Host *
  IdentityFile ~/.ssh/id_ed25519
  IdentityFile ~/.ssh/id_rsa
  ServerAliveInterval 3600
+
+Match all
+Include banyan.config