The SentiAnno corpus, characterised by high linguistic and historical variation, promises significant contribution for the fine-tuning of models in the context of Digital Humanities (DH). Furthermore, the comprehensive annotation guidelines, along with the insights and experiences accumulated throughout the annotation process, will serve as valuable resources for the DH community. The preliminary corpus is available in the SentiAnno Github repository (Krušić, 2024b). Further annotation rounds will be conducted in the scope of the project “SentiAnno: Sentiment-annotated corpus of Austrian historical newspapers”, funded by CLARIAH-AT. The extended corpus will be made publicly available on Zenodo, a platform that supports open access and aligns with the FAIR principles.