As someone who simply wanted a NES assembler, I've found cc65 [0] to be great, for example wrapped as a docker image in [1]. [0]: https://github.com/cc65/cc65

As someone who simply wanted a NES assembler, I've found cc65 [0] to be great, for example wrapped as a docker image in [1]. [0]: https://github.com/cc65/cc65 https://github.com/cc65/cc65 [1]: https://hub.docker.com/r/philhsmith/cc65/ https://hub.docker.com/r/philhsmith/cc65/