  Fast radio bursts (FRBs) are being detected with increasing regularity.
However, their spontaneous and often once-off nature makes high-precision burst
position and frequency-time structure measurements difficult without
specialised real-time detection techniques and instrumentation. The Australian
Square Kilometre Array Pathfinder (ASKAP) has been enabled by the Commensal
Real-time ASKAP Fast Transients Collaboration (CRAFT) to detect FRBs in
real-time and save raw antenna voltages containing FRB detections. We present
the CRAFT Effortless Localisation and Enhanced Burst Inspection pipeline
(CELEBI), an automated software pipeline that extends CRAFT's existing software
to process ASKAP voltages in order to produce sub-arcsecond precision
localisations and polarimetric data at time resolutions as fine as 3 ns of FRB
events. We use Nextflow to link together Bash and Python code that performs
software correlation, interferometric imaging, and beamforming, making use of
common astronomical software packages.
