Hey there just saw your comment on my guestbook.
for my website I basically coded it all in HTML. I used Melon's gallery maker program for the artwork gallery, and a lightbox JS script for other galleries. I recommend joining 32bit.cafe discord server and look up their tutorials and templates on the website.
Just added a bunch more sketches to the gallery. Leave a comment in my guestbook here: https://honora.neocities.org/guestbook
Good luck!