Vaporware warning: much of the content below is hypothetical.
Noblit is an embeddable append-only database. The database records a history of immutable (entity, attribute, value) tuples. Tuples can be asserted and retracted. A retraction is recorded as a new fact; it is not a delete. Any historical state of the database can be reproduced, and the history is first-class and queryable.
Select documentation links:
Some example queries, in the form of golden tests:
Noblit is a toy project. It is pre-alpha, and not supported in any way.
Noblit is licensed under the Apache 2.0 license. It may be used in free software as well as closed-source applications, both for commercial and non-commercial use under the conditions given in the license. If you want to use Noblit in your GPLv2-licensed software, you can add an exception to your copyright notice. Please do not open an issue if you disagree with the choice of license.