Part Time Weekend Child Care Position

I am seeking a childcare position for my just turned 7-year-old son. This position is part time. One weekend day either Saturday or Sunday depending on what I need. Weekly , ongoing. Please do not apply if not able to commit to this schedule. My son is largely independent, and the requirements are to build a rapport and basically play with him, structured activities, make a snack or meal for him while mom does errands and self care on that weekend day. I am full time mother looking to build rapport and trust with someone who is genuinely interested in becoming part of the family and sticking in this position long term. I've had experience with people who say they can commit to this weekend schedule only to later go back on their word . Reside in private home in West Chester . Son is sensitive , loving , 1st grade year.