A system is provided for publishing a plurality of disparate live media output stream manifests using live input streams and pre-encoded media assets. A first instruction, comprising input manifest locations, is allocated to a first worker based on an instruction type and a priority level. At least one of a first manifest data or a second manifest data is read by the first worker from a corresponding input manifest location. A second instruction is allocated to a second worker. A next manifest segment is inserted to a disparate live output stream manifest by the second worker based on reading an ingested manifest metadata. Accordingly, a plurality of disparate live media output stream manifests is generated for each of a plurality of channels based on the disparate live output stream manifest.