# Deprecated Workflows

- [CryoDRGN2 Ab Initio Reconstruction](/cryodrgn/deprecated-workflows/cryodrgn2-ab-initio-reconstruction.md): how to use the commands cryodrgn abinit\_homo and crydrgn abinit\_het
- [Handling large datasets with cryoDRGN preprocess](/cryodrgn/deprecated-workflows/handling-large-datasets-with-cryodrgn-preprocess.md): making bulky datasets fit into memory for model training