NESd v0.16.0 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
APU visualization: per-channel waveforms and parameters (Settings → Debug → Show APU visualization)
MMC5 expansion audio: Additional audio channels used by Japanese MMC5 games
Namco 163 expansion audio: Additional audio channels used by Japanese Namco 163 games
Mapper 176 support: Chinese multicarts and educational cartridges using the 8025 enhanced MMC3 chipset
Fixed
Fixed the second pulse channel following the first one's enable bit, so it could fall silent or keep playing along with the wrong channel
Fixed ROM tiles frequently showing a blank thumbnail after returning from a game
Fixed MMC5 games showing a black screen or freezing
Fixed MMC5 games with battery-backed save RAM having no working memory at all, which also meant their saves were never written
Fixed a crash in MMC5 games that use ExRAM attribute mode
Fixed the first audio sample after a reset being slightly too loud
Fixed Namco 163 games glitching or freezing whenever the game wrote to its sound hardware
Fixed controls being dead after opening a ROM from the file picker, until the game was closed and started again
Fixed opening a ROM via the "File → Open..." menu leaving the game running behind the main menu, with the controls dead
Fixed a game briefly continuing to run in the background when it finished loading while another screen was open
Fixed cancelling the "Open ROM" file picker resuming the game behind the in-game menu instead of leaving it paused
Fixed NES 2.0 ROMs with more than 4 MiB of PRG ROM or 2 MiB of CHR ROM loading at the wrong size, which showed as blank or corrupt graphics
Fixed NES 2.0 ROMs getting the wrong amount of work RAM, save RAM and CHR RAM, which could show as blank or garbled graphics and lost saves

Download: NESd v0.16.0 x64
Download: NESd v0.16.0 Android
Source:Here