Some good advice, above.
I’ve been working at home for the last several years, not as part of a team.
You cannot get an adjustable chair that is too good. My last 3 computer builds are top of the line… high end gaming machines with quality, non-gaming monitors. Monitors are adjustable for height, tilt, and rotation. All desktops have 2TB M.2 SSDs with the exception of the first which only has a 512GB M.2. All have 8TB min HDDs. All are liquid cooled, Kraken. They are also connected to a NAS. Keyboard and mouses (mice?) are high end gaming devices. Razer Basillisk Extreme and Razer Huntsman Elite. My toys… and with the exception of the second build all ASUS motherboards.
My directory structure is Work\Client Name\Project Number and Project Name and I create a new project as it comes in. I use the same numbering system as for my eMails and copy the eMail project name and paste it to the new folder name. I have a heirarchy of sub-folder names with the same sub-folder names that I use for larger projects. Work is saved to the HDD. All software and OS is on the SSD.
I use Libreoffice for corr and spreadsheets, as well as Smath. I print my calcs using DoroPDF and append the *.pdf files. Same with drawings. These are stored in my Drawing folder, in the project folder. The project folder has all drawings, sketches, etc. I often use the ‘snapshot’ feature of Adobe reader for creating sketches.
My work is backed up to a 256GB USB stick a couple of times a day using a program called Free File Sync. This can be configured to save only files that have changed. The USB stick is transferred to another desktop at the end of the day. Backup includes main machine, secondary machine and USB. There is a hole… I do not have an off-site storage. If I take work outside of home, it is carried on an encrypted 256GB USB stick which has all client files. A recent exception… I was recently in the hospital for a couple of weeks and my son brought my laptop and client files to the hospital on non-encrypted USB stick (current active clients were advised of this).
Currently working on my laptop because I cannot access my desktops… I need to build some ramps to gain access. Laptop is an ASUS Zenbook Pro with only an M.2 drive and I have a portable M.2 SSD attached via Thunderbolt as well as USB stick. Back up and orderly folder creation is essential. If working with a team, everyone should be using the same folder heirarchy.
The rest is just plain engineering.