Electronics (excluding gaming console), furniture, interiors design stuff, appliances, clothing and beauty products are frequently 30 - 50% margin. I previously worked with buyers, the toy department expected around 40% margins, electronics didn't want to deal with anything that didn't make them 45%, unless it was part of some promotion.

You can always get a 20% discount on appliances in big-box stores, if you're flexible on the brand. I got 66% discount on a extractor fan when updating our kitchen, that's just insane.

Edit: depending on your script, you could get the Busybox image and use that as a base. Probably a little more work, but it does fix some of your dependency issues. It doesn't have bash, git or fzf though, so there's a fun challenge getting those build.

I think you edited the wrong comment.

There's margin on cost of goods sold, and there's the margin of overall business.

Retail is low margin only if you subtract salaries/offices/marketing AND cost of goods.

Sports and outdoor gear almost always has discounts like this