Tangelo is on open-source software development kit (SDK) to facilitate the design of chemistry simulations on quantum computers. The SDK includes a collection of algorithms and toolboxes that can be assembled like building blocks to easily prototype, customize and test new ideas on simulators or quantum devices. This image comes with Tangelo v0.3.4, several quantum circuit simulators (Cirq, Qiskit, Qulacs), a classical chemistry backend (pyscf) and the amazon-braket-sdk python package. For tutorials and examples to kickstart your exploration, visit our GitHub page: https://github.com/goodchemistryco/Tangelo.