# stable-pretraining > PyTorch Lightning framework for self-supervised learning research. Compose > forward functions, online evaluation, and Manager-managed training. These > docs follow main; Jet and the packaged quickstart are unreleased additions. Package: stable-pretraining. Import: stable_pretraining as spt. Context7 ID: /galilai-group/stable-pretraining. Check the installed version before using an API from main. ## Task guides (plain Markdown) - [First run](https://galilai-group.github.io/stable-pretraining/_sources/guides/quickstart.md): installation and a CPU smoke experiment. - [Custom images](https://galilai-group.github.io/stable-pretraining/_sources/guides/custom_images.md): paired views and ImageFolder input. - [Online evaluation](https://galilai-group.github.io/stable-pretraining/_sources/guides/online_evaluation.md): detached probe training and labels. - [Resume](https://galilai-group.github.io/stable-pretraining/_sources/guides/resume.md): full-state checkpoints and configuration invariants. - [Jet](https://galilai-group.github.io/stable-pretraining/_sources/guides/jet.md): invertible tokens, exact logdet, scale configuration. - [Agent usage](https://galilai-group.github.io/stable-pretraining/_sources/guides/agents.md): Context7, optional skill, and evaluation protocol. ## Reference - [API](https://galilai-group.github.io/stable-pretraining/api/backbone/): encoder architectures and utilities. - [Methods](https://github.com/galilai-group/stable-pretraining/blob/main/METHODS.md): method catalog and forward-function names. - [Source](https://github.com/galilai-group/stable-pretraining): development code and executable tests.