In the vacuum of space, the amount of debris—spent rocket stages, splintered satellites, micrometeoroids—numbers in the millions, all zooming about, often at 17,000 mph speeds. They’re also constantly hitting each other in a tsuris of exponential littering. Most of these pieces are tiny, and many are not anywhere near the altitude of the ISS. But the area isn’t completely clean.
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Jack Dorsey just halved the size of Block’s employee base — and he says your company is next
这次真正困难的，其实并不是演出数量本身，而是巡演所带来的行程密度。在既定的安排下，我始终希望对每一座音乐厅和观众负责，即使在城市之间频繁转换的情况下，也尽力保持演奏应有的集中度和质量。这次经历让我更加清楚，高密度巡演对演奏者提出了怎样的要求，也让我意识到，未来在类似情况下需要更加审慎地评估节奏，才能在长期中持续保持理想的演出状态。
Postgres has its own primitives for things that forges currently build custom infrastructure around. A trigger on the refs table firing NOTIFY means any connected client learns about a push the moment it happens, which is how forges normally end up building a custom webhook polling layer. Multi-tenant repo isolation becomes a database concern through row-level security on the objects and refs tables, and logical replication lets you selectively stream repositories across Postgres instances, a kind of partial mirroring that filesystem-based git can’t do. Commit graph traversal for ancestry queries and merge-base computation falls to recursive CTEs, and pg_trgm indexes on blob content give you substring search across all repositories without standing up a separate search index.