34 lines
1.4 KiB
Markdown
34 lines
1.4 KiB
Markdown
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---
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source_id: SRC-0002
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title: 'Local-first software: You own your data, in spite of the cloud'
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author: Martin Kleppmann; Adam Wiggins; Peter van Hardenberg; Mark McGranaghan
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locator: https://www.inkandswitch.com/essay/local-first/
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version: April 2019 web essay; accessed 2026-09-24; associated Onward! 2019 DOI 10.1145/3359591.3359737
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accessed: '2026-09-24'
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evidence_kind: primary
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excerpt_scope: authority-placement pilot; not a full-source review
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---
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# Bounded primary-source packet
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## Editorial scope (not source text)
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This packet isolates authority placement. Only the quotation is original source
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text. It is a contiguous fragment of the final sentence in the located paragraph;
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the beginning of that sentence is omitted. The rest of the essay, its prototypes,
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replication algorithms and product comparisons are outside this packet.
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## Passage A — Seven ideals for local-first software, paragraph 3, final sentence fragment
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> we treat the copy of the data on your local device — your laptop, tablet, or phone — as the primary copy.
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## Investigation question (editorial)
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What distinguishes a primary local copy from a subordinate cache? What additional
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sources or passages are needed to establish persistence, concurrency and recovery?
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## Excerpt boundary
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Do not infer that this fragment defines merge semantics or makes every copy an
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unrestricted writer. Its parent essay's domain and exceptions need separate review.
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