Tomatoware is a development environment for MIPSEL, ARM, and ARM64/Aarch64 routers. It can be used to natively compile user space applications for these devices.
Downloads for the project available at:
https://github.com/lancethepants/tomatoware/releases
Nigtly builds also found at:
http://lancethepants.com/files
Tomatoware can be compiled with different root prefixes. This allows it to co-exist with entware(-ng)/optware(-ng), which reside in /opt. The official project prefix is /mmc.
Edit config.mk to set the desired architecture and prefix and run make.
Debian 12 is used to build this project. An included Dockerfile can be used to create a working enviornment. Otherwise the following packages should be sufficient.
apt-get install autoconf-archive automake bc bison build-essential cpio curl docbook-xsl flex gawk gettext git libcurl4-openssl-dev libexpat1-dev libffi-dev libglib2.0-dev libncurses5-dev libtool libxml2-dev locales pkg-config po4a python-dev rsync sudo swig texinfo unzip vim wget xsltproc