This story was originally published on HackerNoon at: https://hackernoon.com/r-systems-blogbookchapter-1-round-3-is-now-open-for-submissions.
Enter Round 3 of R Systems BlogBook to write on WebAssembly or GenAI, win prizes, and be published on HackerNoon. Submissions window: Aug 11 - Sept 10, 2025.
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This story was written by: @hackernooncontests. Learn more about this writer by checking @hackernooncontests's about page, and for more stories, please visit hackernoon.com.

The final round of the R Systems BlogBook - Chapter 1 has begun. Share your technical insights on WebAssembly for high-performance web apps and Generative AI in SaaS. Stand a chance to win amazing prizes like HackerNoon badges. The deadline for the contest is xxx

This story was originally published on HackerNoon at: https://hackernoon.com/inside-the-data-what-shapes-startup-deal-sizes-in-africa.
Data-driven study uses machine learning to reveal the key factors influencing African startup deal amounts and investment outcomes.
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This story was written by: @exitstrategy. Learn more about this writer by checking @exitstrategy's about page, and for more stories, please visit hackernoon.com.

This study analyzes over 2,500 publicly disclosed African startup deals to uncover what drives investment sizes. By cleaning, merging, and engineering data from africathebigdeal.com, features were grouped into founding-team, company, and investment categories. Exploratory Data Analysis and four machine learning models — Linear Regression, SVR, Random Forest, and Gradient Boosting — were used to predict deal amounts. The best-performing model, validated via cross-validation, forms the basis for data-backed insights and policy recommendations aimed at strengthening Africa’s startup funding ecosystem.

This story was originally published on HackerNoon at: https://hackernoon.com/a-practical-guide-to-scaling-real-time-video-infrastructure.
Learn how to scale real-time video streaming with FFmpeg & MediaMTX—architecting for performance, reliability, and global reach.
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This story was written by: @gold-olar. Learn more about this writer by checking @gold-olar's about page, and for more stories, please visit hackernoon.com.

This article focuses on patterns and thinking, not implementation details. We'll explore when to scale, which patterns to consider, and how to make architectural decisions that balance complexity against real needs.