Adapter script to call Codium from sensible-editor with the +n syntax.

codium-adapter-for-sensible-editor.sh

#!/usr/bin/env bash

set -eo pipefail

case "$#" in
  "0")
    codium --wait
    ;;
  "1")
    codium --wait "$1"
    ;;
  "2")
    lineposition="$(echo "$1" | grep -oP "(?<=^\+)(\\d+$)" || echo "$1" | grep -oP "(?<=^\+)(\\d+,\\d+$)")"
    codium --wait --goto "$2:${lineposition//,/:}"
    ;;
  "*")
    echo "Too many arguments"
    exit 1
    ;;
esac

To install you have to create a config file in your home folder to tell sensible-editor where to find the script.

echo 'SELECTED_EDITOR="/path/to/script"' > ~/.selected_editor