In recent years, the high-precision technique of decay-pion spectroscopy at the Mainz Microtron (MAMI), using high-resolution magnetic spectrometers, contributed to the accurate determination of the $\Lambda$ binding energy of $^4_\Lambda$H. For the lightest hypernucleus, the hypertriton, the binding energy is known only from measurements carried out with nuclear emulsions. An account is given on the potential of observing the hypertriton with decay-pion spectroscopy from fragmentation of light target nuclei. Statistical decay calculations suggest that lithium is the optimal target material to observe hypertriton decays under relative clean conditions with only few other light hyperfragments being produced. Finally, a high-precision measurement of the hypertriton mass at MAMI is proposed.