This article explores the development of a multi-project wafer (MPW) platform for flexible thin-film transistors (TFTs), specifically focusing on amorphous indium-gallium-zinc oxide (a-IGZO) and low-temperature polycrystalline silicon (LTPS) technologies. The authors demonstrate the feasibility of fabless manufacturing for these TFTs by designing the iconic 6502 microprocessor in both technologies. The MPW concept allows for the aggregation of various chip designs within a single die, reducing costs and complexity in manufacturing flexible electronics. The article highlights the importance of process design kits (PDKs) and semi-custom design flows in enabling this approach. The results show that the flexible IGZO processor has the highest integration density due to its advanced photolithography resolution and extra metallization layers, while the LTPS version offers competitive clock frequencies and power consumption. The authors conclude that the MPW concept for flexible TFTs will accelerate the development and application of thin-film electronics, particularly in IoT, wearable healthcare, and other emerging fields.This article explores the development of a multi-project wafer (MPW) platform for flexible thin-film transistors (TFTs), specifically focusing on amorphous indium-gallium-zinc oxide (a-IGZO) and low-temperature polycrystalline silicon (LTPS) technologies. The authors demonstrate the feasibility of fabless manufacturing for these TFTs by designing the iconic 6502 microprocessor in both technologies. The MPW concept allows for the aggregation of various chip designs within a single die, reducing costs and complexity in manufacturing flexible electronics. The article highlights the importance of process design kits (PDKs) and semi-custom design flows in enabling this approach. The results show that the flexible IGZO processor has the highest integration density due to its advanced photolithography resolution and extra metallization layers, while the LTPS version offers competitive clock frequencies and power consumption. The authors conclude that the MPW concept for flexible TFTs will accelerate the development and application of thin-film electronics, particularly in IoT, wearable healthcare, and other emerging fields.