The larger streets in my neighborhood have wide sidewalks/bike paths. I can safely cycle to two local grocery stores where I also drop off any plastic bags to be recycled, the post office, our Goodwill (used store), and a strip mall with various shops and restaurants. Florida has a horrendous pedestrian/cyclist fatality rate so bike paths are the true limiting factor. Naples is especially bad. It took time to find a safer neighborhood.
I also have an e-reader, but there's something about seeing physical books displayed and handling them that I love. Learn about all your library's onsite and digital services. Make it part if your weekly routine and get to know your librarians. Solarpunk is community. Here I love the free Consumers Reports when researching larger purchases and interlibrary loans for obscure books. As for the physical ownership, I donated over 1,250 books in 2021 that I could easily own digitally or borrow. I don't miss them. Minimalism is a healthier way to live and a tablet with a backup NAS is a much smaller footprint.
I would love an herb garden, so good for you, but I suck at maintaining plants. So I grow what is easy in the windowsill above my sink for now.
Consider used clothing as well. The quality of new has deteriorated to a point where used is often better. I would love strong consumer laws, but would still likely skew used for environmental reasons. I bought my eldest child a used laptop in 2020 with a chipped case for $250. One $40 new battery last year and a free swap to Linux Mint from Windows 10 and it's still going strong (glad your mom likes it too!). What do you run on your home server?
What helps in general is to think in cost per year owned. In the case if the used laptop, I'm at under $60/year. It both encourages wise buying, repairs, and using things longer. It also helps that I block all advertising I can and never read about new electronics. As a result, I'm satisfied with what I have.
I truly believe sustainability is key to a quality of life that maximizes health and happiness. You are taking great steps. I am a planner so I always make sure I have targets and timetables for the next phases to ensure I hit them. As a result, my life gets better every year.