--- title: "Storing data as a sequence of events - RubyConfAt lightning talk supplement" url: https://daily.dev/posts/storing-data-as-a-sequence-of-events---rubyconfat-lightning-talk-supplement-yhjftzetl source_url: https://blog.arkency.com/storing-data-as-a-sequence-of-events-ruby-conf-austria-lightning-talk-supplement type: article source: "arkency" published: 2026-05-31T16:48:35.828Z updated: 2026-05-31T16:48:58.625Z tags: ["architecture", "ruby", "rails"] reading_time: 6 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Storing data as a sequence of events - RubyConfAt lightning talk supplement **[arkency](https://daily.dev/sources/arkency)** · 6 min read · 0 upvotes · 0 comments ## Summary An introduction to event sourcing as a persistence technique for Ruby/Rails applications, based on a RubyConfAt lightning talk. Covers core concepts: events as immutable facts, streams as logical groupings of events, and projections for rebuilding state. Addresses four common misconceptions — that immutability prevents data correction, that rebuilding state requires loading all history, that it's slow, and that it requires new infrastructure. Highlights RailsEventStore as a drop-in gem supporting PostgreSQL, MySQL, and SQLite. Emphasizes event sourcing as a useful tool for auditable, debuggable systems, not a universal solution. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#architecture](https://daily.dev/tags/architecture), [#ruby](https://daily.dev/tags/ruby), [#rails](https://daily.dev/tags/rails) [View this post on daily.dev](https://daily.dev/posts/storing-data-as-a-sequence-of-events---rubyconfat-lightning-talk-supplement-yhjftzetl)