diff --git a/env.ps1 b/env.ps1
index 8b94a1d..503c5b6 100644
--- a/env.ps1
+++ b/env.ps1
@@ -37,6 +37,7 @@
 Function Global:dotidy { black src tests build.py }
 Function Global:dolint { flake8 src tests build.py }
 Function Global:dotest { pytest -q -n auto -x -l --sw --hypothesis-profile=dev $args }
+Function Global:dotest_dev { pytest -vv -n 0 -x -l --sw --hypothesis-profile=dev $args }
 Function Global:dotest_ci { pytest -q -n auto --hypothesis-profile=ci }
 Function Global:dotest_long { pytest -q -n auto --hypothesis-profile=long }
 Function Global:docheck { dotidy; dolint; dotest }
diff --git a/env.sh b/env.sh
index e6b412e..1a677ba 100644
--- a/env.sh
+++ b/env.sh
@@ -29,6 +29,7 @@
 dotidy() { black src tests build.py; }
 dolint() { flake8 src tests build.py; }
 dotest() { pytest -q -n auto -x -l --sw --hypothesis-profile=dev $@; }
+dotest_dev() { pytest -vv -n 0 -x -l --sw --hypothesis-profile=dev $@; }
 dotest_ci() { pytest -q -n auto --hypothesis-profile=ci; }
 dotest_long() { pytest -q -n auto --hypothesis-profile=long; }
 docheck() { dotidy && dolint && dotest; }