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( On "local-first") title
(Beyond the CRDT silver bullet) authortwo
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( Part 1) header
( Exposition) title
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( Target) header
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(- documents) n
(- files) n
(- personal data repositories) n
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(Not: banking services, e-commerce, social networking, ride-sharing, etc.) n
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( 7 ideals for local-first software) title
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( 1 - no spinners: your work at your fingertips) title
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( 2 - your work is not trapped on one device) title
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( 3 - the network is optional) title
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( 4 - seamless collaboration with your colleagues) title
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( 5 - the long now) title
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( 6 - security and privacy by default ) title
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( 7 - you retain ultimate ownership and control) title
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( Towards a better future) header
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( CRDTs \(Conflict-free Replicated Data Types\) as a Foundational Technology) authortwo
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( Use case) header
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(# in node A and node B) cn
(s = "Hello, World") cn
() cn
(# in node A) cn
(s = "Hello, Alice") cn
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(# in node B) cn
(s = "Hello, Bob") cn
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(How to reconcile those?) n
(- Hello, ABloibce) n
(- Hello, AliceBob) n
(- Hello, BobAlice) n
(- Hello, Alice) n
(...) n
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( Existing CRDTs differ) title
(- performance) n
(- storage) n
(- compression) n
(- metadata overhead) n
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( Hint towards the "automerge" CRDT) title
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(show comparison table, page 9) author
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( Part 2) header
( Critique) title
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( Software license) header
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("In our opinion, maintaining control and ownership of data does not mean that the software must necessarily be open source.") author
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( Example 1 - intentional restriction) header
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(#!/bin/sh) cn
(TODAY="$\(date +%s\)") cn
(LICENSE_EXPIRATION="$\(date -d 2020-10-27 +%s\)") cn
(if [ "$TODAY" -ge "$LICENSE_EXPIRATION" ]; then) cn
( echo 'License expired!') cn
( exit 1) cn
(fi) cn
(echo $\(\(2 + 2\)\)) cn
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(# today) cn
($ ./useful-adder.sh) cn
(4) cn
(# tomorrow) cn
($ ./useful-adder.sh) cn
(License expired!) cn
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( Example 2 - unintentional restriction) header
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(# today) cn
($ useful-program) cn
(# ... useful output ...) cn
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(# tomorrow, with more data) cn
($ useful-program) cn
(ERROR: Panic! Stack overflow!) cn
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( local-first *requires* free software ) title
(Otherwise "The Long Now" \(ideal nš5\) is lost) n
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( Denial of existing solutions) header
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("In principle it is possible to collaborate without a repository service, e.g. by sending patch files by email, but the majority of Git users rely on GitHub." ) author
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(Solution: either GitHub+CRDTs or git send-email ) n
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( Plain-text formats) header
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("Git is highly optimized for code and similar line-based text file") author
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(It even pulls software to the plain text directtion, e.g.:) n
(- delivery-templates) n
(- common-core.protocols.config) n
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(Why not exploit that more?) n
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( Ditching of web applications) header
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("The architecture of web apps remains fundamentally server-centric) author
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(Disagree. Contrast PouchDB with Android Instant Apps) n
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( Costs are underrated) header
() n
(- storage) n
(- backups) n
(- maintenance) n
() n
(Example: blog vs vlog) n
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( Real-time collaboration a bit overrated) header
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(It is only possible on the presence of reliable, medium-quality network connection) n
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("X also works when inside an elevator, subway or plane!") author
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( On CRDTs and developer experience) header
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("For an app developer, how does the use of a CRDT-based data layer compare to existing storage layers like a SQL database, a filesystem, or CoreData? Is a distributed system harder to write software for?) author
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(YES.) authortwo
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(See "A Note on Distributed Computing") n
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( Conclusion) header
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(Why this is a "paper I love": it took offline-first and ran with it.) n
() n
(But a pinch of CRDT won't make the world local-first. ) n
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(The tricky part is the end of the sentence: "in spite of the Cloud".) n
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( References) header
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(1. "Local-First Software: You Own Your Data, in spite of the Cloud", by M. Kleppmann, A. Wiggins, P. Van Hardenberg and M. F. McGranaghan) n
(2. The Morning Paper article) n
(3. "A Note on Distributed Compiting", by J. Waldo, G. Wyant, A. Wollrath and S. Kendall) n
(4. these slides: euandre.org/slide/) n
(5. prose version of this presentation) n
(6. view source) n
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