From OpenSCADAWiki
Lightweight package management system — IPKG packages
An area of application of the package manager and packages IPKG has builtin Linux environments with limited amount of memory, such as wireless routers. Accordingly, the building of IPKG packages is a part of the build systems of such environments and the description of this procedure can not be considered separately from the build system itself, so for the creation of IPKG packages of OpenSCADA read in the section "OpenWrt distributive of the subproject OpenSCADA generic embedding and programmable logical controllers (PLC)".