Our great sponsors
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sirix
SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
You can use Datomic for instance (mentioned already in your article IIRC!?) or SirixDB[1] on sich I'm working in my spare time.
The idea is an indexed append-only log-structure and to use a functional tree structure (sharing unchanged nodes between revisions) plus a novel algorithm to balance incremental and full dumps of database pages using a sliding window instead.
[1] https://sirix.io | https://github.com/sirixdb/sirix