  The Short Baseline Near Detector (SBND) is a 112 ton active mass liquid argon
time projection chamber (LArTPC) that will begin operations in the Booster
Neutrino Beamline at Fermilab in 2020. Its main physics goals include
high-statistics measurements of neutrino-argon interaction cross-sections and
searches for sterile neutrino oscillations as part of three LArTPCs that make
up the Short Baseline Neutrino (SBN) Program at Fermilab. In addition, SBND
serves as an R\&D platform for future LArTPC detectors such as those employed
by the Deep Underground Neutrino Experiment (DUNE). One of the technical
challenges of DUNE that SBND aims to address is that of efficient
self-triggering utilizing TPC signal information. Such capability will enable
searches for rare processes in the DUNE far detector, for example neutrino
interactions from a potential galactic supernova burst, or proton decay. These
proceedings describe the SBND TPC readout system and ongoing R\&D efforts to
develop and demonstrate efficient TPC-based self-triggering.
