Work by Martin Åberg (endofexclusive) has many interesting projects, for example “Deniser - Amiga Denise chip replacement”

Link to GitHub page:

https://github.com/endofexclusive/

Tags / Projects:

• Deniser - Amiga Denise drop in replacement for OCS ECS Amiga 500, A1000, A2000, A3000 (VHDL, FPGA) https://github.com/endofexclusive/deniser