diff --git a/.plsdo.sh b/.plsdo.sh
deleted file mode 100644
index 94c08567..00000000
--- a/.plsdo.sh
+++ /dev/null
@@ -1,75 +0,0 @@
-#!/usr/bin/env bash
-# plsdo.sh, version 0.1.1
-set -o errexit -o nounset -o pipefail
-
-_plsdo_run() {
-    case "${1-}" in
-    ""|help)
-        _plsdo_help "${2-}" ;;
-    *)
-        "$@" ;;
-    esac
-}
-
-declare -A help
-
-help[list]="Print the list of tasks"
-list() {
-    declare -F | awk '{print $3}' | grep -v '^_'
-}
-
-_plsdo_help_task_name_width="${_plsdo_help_task_name_width:-12}"
-
-_plsdo_help() {
-    local topic="${1-}"
-    # print help for the topic
-    if [ -n "$topic" ]; then
-        if ! command -v "$topic" > /dev/null ; then
-            _plsdo_error "No such task: $topic"
-            return 1
-        fi
-
-        printf "\nUsage:\n  %s %s\n\n%s\n" "$0" "$topic" "${help[$topic]-}"
-        return 0
-    fi
-
-    # print list of tasks and their help line.
-    [ -n "${banner-}" ] && echo "$banner" && echo
-    for i in $(list); do
-        printf "%-${_plsdo_help_task_name_width}s\t%s\n" "$i" "${help[$i]-}" | head -1
-    done
-}
-
-_plsdo_error() {
-    >&2 echo "$@"
-}
-
-# shellcheck disable=SC2016
-help[_plsdo_completion]='Print tab completion for $SHELL.
-
-Redirect the output to a file that will be run when the shell starts,
-such as ~/.bashrc.
-
-    $ ./do _pldsdo_completion >> ~/.bash_complete/do
-'
-_plsdo_completion() {
-    local shell; shell="$(basename "$SHELL" 2> /dev/null)"
-    case "$shell" in
-    bash)
-        cat <<+++
-_dotslashdo_completions() {
-    if ! command -v $0 > /dev/null; then return; fi
-    if [ "\${#COMP_WORDS[@]}" != "2" ]; then return; fi
-    COMPREPLY=(\$(compgen -W "\$($0 list)" "\${COMP_WORDS[1]}"))
-}
-complete -F _dotslashdo_completions $0
-+++
-        ;;
-    "")
-        _plsdo_error "Set \$SHELL to select tab completion."
-        return 1 ;;
-    *)
-        _plsdo_error "No completetion for shell: $shell"
-        return 1 ;;
-    esac
-}
diff --git a/do b/do
index aed4df15..7c789ec9 100755
--- a/do
+++ b/do
@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
+set -o errexit -o nounset -o pipefail
 
-source .plsdo.sh
+declare -A help
 
 binary() {
     mkdir -p dist
@@ -13,18 +14,7 @@ binary-static() {
 }
 
 update-golden() {
-    #_update-golden
-    if ldd ./dist/gotestsum > /dev/null 2>&1; then
-        binary-static
-    fi
-    GOLANG_VERSION=1.13-alpine ./do shell ./do _update-golden
-    GOLANG_VERSION=1.14.6-alpine ./do shell ./do _update-golden
-}
-
-_update-golden() {
-    PATH="$PWD/dist:$PATH" gotestsum -- \
-        ./cmd ./testjson ./internal/junitxml ./cmd/tool/slowest \
-        -test.update-golden
+    gotestsum -- ./... -update
 }
 
 lint() {
@@ -83,4 +73,38 @@ godoc() {
     command godoc -http=:6060
 }
 
+help[list]="Print the list of tasks"
+list() {
+    declare -F | awk '{print $3}' | grep -v '^_'
+}
+
+_plsdo_help() {
+    local topic="${1-}"
+    # print help for the topic
+    if [ -n "$topic" ]; then
+        if ! command -v "$topic" > /dev/null ; then
+            >&2 echo "No such task: $topic"
+            return 1
+        fi
+
+        printf "\nUsage:\n  %s %s\n\n%s\n" "$0" "$topic" "${help[$topic]-}"
+        return 0
+    fi
+
+    # print list of tasks and their help line.
+    [ -n "${banner-}" ] && echo "$banner" && echo
+    for i in $(list); do
+        printf "%-12s\t%s\n" "$i" "${help[$i]-}" | head -1
+    done
+}
+
+_plsdo_run() {
+    case "${1-}" in
+    ""|help)
+        _plsdo_help "${2-}" ;;
+    *)
+        "$@" ;;
+    esac
+}
+
 _plsdo_run "$@"