  Mid-infrared spectroscopy provides many important diagnostics on gas and dust
features in a wide variety of astrophysical objects. The Spitzer Infrared
Spectrograph observed more than 20000 targets with wavelengths as low as 5.2um
and as long as 38um, thereby complementing JWST/MIRI data for long wavelength
diagnostics and providing overall invaluable diagnostics together with JWST or
in view of future IR facilities. In order to maximize the science output of
Spitzer/IRS, the CASSIS atlas has provided reduced IRS spectra since 2011,
extracting and selecting the best spectrum from various methods.
  We now present CASSISjuice, an offline version of the pipeline and atlas,
adding several hundred sources that had never cleared the pipeline in order to
make it complete for the first time. We updated the low- and high-resolution
pipelines in order to be able to process every IRS staring mode observation
(i.e., all observations but maps), and we also upgraded the high-resolution
pipeline to version 2. The new pipeline also associates the pointings within
"cluster" observations resulting in a single spectrum (possibly low- and
high-resolution) per position and therefore overall a single CASSISjuice ID per
targeted position.
  The initial repositories are hosted at Zenodo, providing the open-source
pipeline code and the atlas itself with specific attention to producing the
smallest dataset possible. Version controlled repositories are also available
at GitLab, including Python notebooks to illustrate the offline manipulation of
the full atlas. The offline CASSISjuice atlas is meant to facilitate the
analysis of large samples and the ident
