The basic requirement of a conducive home office is to dedicate an area where you can focus. If you can only focus when it's quiet, make sure you have your own room without any distractions. If you prefer having some noise, you can set up a table in your living room. Ensure that your chair is cushioned well and comfortable for sitting for long hours. Restless individuals can consider getting a table with adjustable height settings so you can stand while completing your work if need be.
Other than the basics, the key is to know what works for you. For example, if you thrive when you read motivational quotes, get a cork board and pin post-its with motivational quotes written on them. When you feel tired, just look up and read one to feel recharged.