I presented at the Unicode Conference 2 weeks ago, on Oct. 16, on important yet overlooked issues that concern languages that use abugida scripts and have agglutinative morphology, using Thamil language as a case study. Although the talk was mainly about the issues around dictionary data sets, other issues included input methods, and the need for phoneme level segmentation for these use cases. See below for more details:
Slides:
https://docs.google.com/presentation/d/1EdNLgh8MyvSqDlm2I2_aXM-WgTINaZekXZWq0629ZLQ/edit
Pre-recorded talk:
The talk covered the following topics: