The Meditationes is the scientific notebook of the mathematician Jacob Bernoulli (1654-1705), comprising 367 pages with over 287 entries, more than 90% of which deal with mathematics and physics. Begun around 1676, it is a document of outstanding significance for the history of mathematics at its turning point around 1700. The BEOL platform presents the first complete edition of the notebook as a region-based, multilayer, interactive digital edition providing access to facsimiles, transcriptions, translations, indices, and commentaries.