NESd v0.21.0 is released. A NES Emulator written in Dart and Flutter. Supports macOS, Windows, Android and Linux (tested on Steam Deck).

Features
Runs on macOS, Linux, Windows, and Android
Cycle accurate CPU emulation
PPU and APU emulation
SRAM saves
Save states
Customizable controls with multiple bindings per action
Gamepad support
Load ROMs from file or ZIP archive
Customizable touch screen controls
Debug overlay
Debugging tools
Debugger
Execution Log

NESd changelog:
Added
Color Dreams (mapper 11) support
AVE NINA-03/NINA-06 (mapper 79) and Sachen 3015 (mapper 146) support
Undo Load State
Screenshot action (F12 by default) that saves the current frame
The web version can be installed to the home screen with offline support
OAM corruption: sprites glitch like on real hardware
The web version can start a ROM from a link
Changed
Improved emulation performance
Fixed
Fixed minor bugs in multiple CPU instructions
Fixed an issue with the open bus implementation
More accurate APU frame interrupt flag
Fixed an inaccuracy in the controller input implementation
More accurate PPU implementation
More accurate sprite evaluation

Download: NESd v0.21.0 x64
Download: NESd v0.21.0 Android
Source:Here