5.31.26 | Microsoft Office Mac conversions, domain expertise, OpenRouter raises $113M

This is a recap of the top 10 posts on Hacker News on May 31, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights(00:00) - Intro (00:17) - Microsoft Office 2019 and 2021 for Mac view-only conversion (01:44) - Domain expertise has always been the real moat (03:17) - OpenRouter raises $113M Series B (04:41) - Openrsync: An implementation of rsync, by the OpenBSD team (06:24) - I found a seashell in the middle of the desert (07:33) - Accenture to acquire Ookla (09:01) - Voxel Space (2017) (10:07) - Shantell Sans (2023) (11:20) - The AV2 Video Standard Has Released (Final v1.0 Specification) (12:48) - Zig ELF Linker Improvements Devlog (14:14) - Outro Microsoft Office 2019 and 2021 for Mac view-only conversionhttps://consumerrights.wiki/w/Microsoft_Office_2019_and_2021_for_Mac_view-only_conversion_(2026)https://news.ycombinator.com/item?id=48341578Domain expertise has always been the real moathttps://www.brethorsting.com/blog/2026/05/domain-expertise-has-always-been-the-real-moat/https://news.ycombinator.com/item?id=48340411OpenRouter raises $113M Series Bhttps://openrouter.ai/announcements/series-bhttps://news.ycombinator.com/item?id=48338660Openrsync: An implementation of rsync, by the OpenBSD teamhttps://github.com/kristapsdz/openrsynchttps://news.ycombinator.com/item?id=48334854I found a seashell in the middle of the deserthttps://github.com/Hawzen/I-found-a-seashell-in-the-middle-of-the-desert#i-found-a-seashell-in-the-middle-of-the-deserthttps://news.ycombinator.com/item?id=48318402Accenture to acquire Ooklahttps://newsroom.accenture.com/news/2026/accenture-to-acquire-ookla-to-strengthen-network-intelligence-and-experience-with-data-and-ai-for-enterpriseshttps://news.ycombinator.com/item?id=48337987Voxel Space (2017)https://s-macke.github.io/VoxelSpace/https://news.ycombinator.com/item?id=48336564Shantell Sans (2023)https://shantellsans.com/processhttps://news.ycombinator.com/item?id=48341062The AV2 Video Standard Has Released (Final v1.0 Specification)https://av2.aomedia.orghttps://news.ycombinator.com/item?id=48340910Zig ELF Linker Improvements Devloghttps://ziglang.org/devlog/2026/#2026-05-30https://news.ycombinator.com/item?id=48338673