diff --git a/tools/op.sh b/tools/op.sh
index 3ebd413a79..ec4728ddf1 100755
--- a/tools/op.sh
+++ b/tools/op.sh
@@ -1,24 +1,22 @@
 #!/usr/bin/env bash
 
+set -e
+
 RED='\033[0;31m'
 GREEN='\033[0;32m'
 UNDERLINE='\033[4m'
 BOLD='\033[1m'
 NC='\033[0m'
 
+RC_FILE="${HOME}/.$(basename ${SHELL})rc"
+if [ "$(uname)" == "Darwin" ] && [ $SHELL == "/bin/bash" ]; then
+  RC_FILE="$HOME/.bash_profile"
+fi
 function op_install() {
-  (set -e
-
   echo "Installing op system-wide..."
-  RC_FILE="${HOME}/.$(basename ${SHELL})rc"
-  if [ "$(uname)" == "Darwin" ] && [ $SHELL == "/bin/bash" ]; then
-    RC_FILE="$HOME/.bash_profile"
-  fi
-  CMD="\nalias op='source "$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )/op.sh" \"\$@\"'\n"
+  CMD="\nalias op='"$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )/op.sh" \"\$@\"'\n"
   grep "alias op=" "$RC_FILE" &> /dev/null || printf "$CMD" >> $RC_FILE
   echo -e " ↳ [${GREEN}✔${NC}] op installed successfully. Open a new shell to use it.\n"
-
-  )
 }
 
 function op_run_command() {
@@ -55,8 +53,6 @@ function op_check_openpilot_dir() {
 }
 
 function op_check_git() {
-  (set -e
-
   echo "Checking for git..."
   if ! command -v "git" > /dev/null 2>&1; then
     echo -e " ↳ [${RED}✗${NC}] git not found on your system!"
@@ -81,13 +77,9 @@ function op_check_git() {
     fi
   done
   echo -e " ↳ [${GREEN}✔${NC}] git submodules found."
-
-  )
 }
 
 function op_check_os() {
-  (set -e
-
   echo "Checking for compatible os version..."
   if [[ "$OSTYPE" == "linux-gnu"* ]]; then
 
@@ -113,13 +105,9 @@ function op_check_os() {
     echo -e " ↳ [${RED}✗${NC}] OS type $OSTYPE not supported!"
     return 1
   fi
-
-  )
 }
 
 function op_check_python() {
-  (set -e
-
   echo "Checking for compatible python version..."
   REQUIRED_PYTHON_VERSION=$(grep "requires-python" $OPENPILOT_ROOT/pyproject.toml)
   INSTALLED_PYTHON_VERSION=$(python3 --version 2> /dev/null || true)
@@ -133,8 +121,6 @@ function op_check_python() {
     echo -e " ↳ [${RED}✗${NC}] You need python version at least $(echo $REQUIRED_PYTHON_VERSION | tr -d -c '[0-9.]') to continue!"
     return 1
   fi
-
-  )
 }
 
 function op_check_venv() {
@@ -171,8 +157,6 @@ function op_before_cmd() {
 }
 
 function op_setup() {
-  (set -e
-
   op_get_openpilot_dir
   cd $OPENPILOT_ROOT
 
@@ -203,8 +187,6 @@ function op_setup() {
   echo -e " ↳ [${GREEN}✔${NC}] Files pulled successfully in $((et - st)) seconds.\n"
 
   op_check
-
-  )
 }
 
 function op_activate_venv() {
@@ -212,99 +194,52 @@ function op_activate_venv() {
 }
 
 function op_venv() {
-  ( set -e
-
   op_before_cmd
-
-  )
-
-  if [[ "$?" -eq 0 ]]; then
-
-    if [[ "${BASH_SOURCE[0]}" = "${0}" ]]; then
-      echo "Run 'op venv' or 'source op.sh venv' to activate your venv!"
-      return 1
-    fi
-
-    # this must be run in the same shell as the user calling "op"
-    op_get_openpilot_dir
-    op_run_command source $OPENPILOT_ROOT/.venv/bin/activate
-  fi
+  bash --rcfile <(echo "source $RC_FILE; source $OPENPILOT_ROOT/.venv/bin/activate")
 }
 
 function op_check() {
-  (set -e
-
   VERBOSE=1
   op_before_cmd
   unset VERBOSE
-
-  )
 }
 
 function op_build() {
-  (set -e
-
   CDIR=$(pwd)
   op_before_cmd
   cd "$CDIR"
   op_run_command scons $@
-
-  )
 }
 
 function op_juggle() {
-  (set -e
-
   op_before_cmd
   op_run_command tools/plotjuggler/juggle.py $@
-
-  )
 }
 
 function op_lint() {
-  (set -e
-
   op_before_cmd
   op_run_command pre-commit run --all $@
-
-  )
 }
 
 function op_test() {
-  (set -e
-
   op_before_cmd
   op_run_command pytest $@
-
-  )
 }
 
 function op_replay() {
-  (set -e
-
   op_before_cmd
   op_run_command tools/replay/replay $@
-
-  )
 }
 
 function op_cabana() {
-  (set -e
-
   op_before_cmd
   op_run_command tools/cabana/cabana $@
-
-  )
 }
 
 function op_sim() {
-  (set -e
-
   op_before_cmd
   op_run_command exec tools/sim/run_bridge.py &
   op_run_command exec tools/sim/launch_openpilot.sh
-
-  )
 }
 
 function op_default() {
@@ -387,36 +322,3 @@ function _op() {
 }
 
 _op $@
-
-# remove from env
-unset -f _op
-unset -f op_check
-unset -f op_setup
-unset -f op_build
-unset -f op_juggle
-unset -f op_venv
-unset -f op_check_openpilot_dir
-unset -f op_check_git
-unset -f op_check_python
-unset -f op_check_os
-unset -f op_install
-unset -f op_default
-unset -f op_run_command
-unset -f op_lint
-unset -f op_replay
-unset -f op_cabana
-unset -f op_check_venv
-unset -f op_before_cmd
-unset -f op_sim
-unset -f op_activate_venv
-unset -f op_get_openpilot_dir
-unset -f op_test
-unset DRY
-unset NC
-unset RED
-unset GREEN
-unset UNDERLINE
-unset BOLD
-unset OPENPILOT_ROOT
-unset NO_VERIFY
-unset VERBOSE