Earlier this year I read “I Heart Logs”, which wound up feeling like a prelude to later learning about Event Sourcing…
www.oreilly.com/library/view...
www.oreilly.com/library/view...
I Heart Logs
Why a book about logs? That’s easy: the humble log is an abstraction that lies at the heart of many systems, from NoSQL databases to cryptocurrencies. Even though most engineers... - Selection from I ...
www.oreilly.com
December 7, 2025 at 8:10 PM
Earlier this year I read “I Heart Logs”, which wound up feeling like a prelude to later learning about Event Sourcing…
www.oreilly.com/library/view...
www.oreilly.com/library/view...
I’ve been on a learning journey with Event Sourcing for a bit now, seems like CQRS also could fit in here? Most of my reading has been with in the (red) DDD book, and it’s been interesting to see how nicely the concepts dovetail with others!
December 7, 2025 at 8:08 PM
I’ve been on a learning journey with Event Sourcing for a bit now, seems like CQRS also could fit in here? Most of my reading has been with in the (red) DDD book, and it’s been interesting to see how nicely the concepts dovetail with others!
I'll be adding this article (and enriching my talk on the topic) to my list of references. If you're interested in learning about event-sourcing from scratch (esp. in #Java), check out my Ted talk: ted.dev/talks/#even...)
My Presentations | Ted M. Young
Articles, Videos, Training, and Coaching for Java Developers
ted.dev
December 7, 2025 at 7:31 PM
I'll be adding this article (and enriching my talk on the topic) to my list of references. If you're interested in learning about event-sourcing from scratch (esp. in #Java), check out my Ted talk: ted.dev/talks/#even...)
📦 ecotone/ecotone 1.279.0
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
December 7, 2025 at 2:58 PM
📦 ecotone/ecotone 1.279.0
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
Ismael will show how Event Sourcing can provide a cohesive, end-to-end programming model centred around workflows, where a small set of building blocks can enable auditable data, durable execution and reactive UIs by default. All with the simplicity of idiomatic Ruby 💎
December 6, 2025 at 5:39 PM
Ismael will show how Event Sourcing can provide a cohesive, end-to-end programming model centred around workflows, where a small set of building blocks can enable auditable data, durable execution and reactive UIs by default. All with the simplicity of idiomatic Ruby 💎
Santa is very generous to us today - he’s bringing two great announcements:
📣 Let’s welcome our first speaker - @ismaelcelis.com will join us to explore Event Sourcing and the Actor model in Ruby!
🎟️ The second batch of tickets goes on sale on Monday, Dec 8 at 10:00 CET - don't miss it!
📣 Let’s welcome our first speaker - @ismaelcelis.com will join us to explore Event Sourcing and the Actor model in Ruby!
🎟️ The second batch of tickets goes on sale on Monday, Dec 8 at 10:00 CET - don't miss it!
December 6, 2025 at 5:38 PM
Santa is very generous to us today - he’s bringing two great announcements:
📣 Let’s welcome our first speaker - @ismaelcelis.com will join us to explore Event Sourcing and the Actor model in Ruby!
🎟️ The second batch of tickets goes on sale on Monday, Dec 8 at 10:00 CET - don't miss it!
📣 Let’s welcome our first speaker - @ismaelcelis.com will join us to explore Event Sourcing and the Actor model in Ruby!
🎟️ The second batch of tickets goes on sale on Monday, Dec 8 at 10:00 CET - don't miss it!
📦 ecotone/pdo-event-sourcing 1.278.1
Extends Ecotone with Event Sourcing using Prooph PDO Event Store
🔗 https://github.com/ecotoneframework/pdo-event-sourcing
Extends Ecotone with Event Sourcing using Prooph PDO Event Store
🔗 https://github.com/ecotoneframework/pdo-event-sourcing
December 6, 2025 at 4:57 PM
📦 ecotone/pdo-event-sourcing 1.278.1
Extends Ecotone with Event Sourcing using Prooph PDO Event Store
🔗 https://github.com/ecotoneframework/pdo-event-sourcing
Extends Ecotone with Event Sourcing using Prooph PDO Event Store
🔗 https://github.com/ecotoneframework/pdo-event-sourcing
📦 ecotone/ecotone 1.278.1
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
December 6, 2025 at 4:57 PM
📦 ecotone/ecotone 1.278.1
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
📦 patchlevel/event-sourcing-phpunit 1.3.0
PHPUnit testing utilities for patchlevel/event-sourcing
🔗 https://github.com/patchlevel/event-sourcing-phpunit
PHPUnit testing utilities for patchlevel/event-sourcing
🔗 https://github.com/patchlevel/event-sourcing-phpunit
December 6, 2025 at 3:06 PM
📦 patchlevel/event-sourcing-phpunit 1.3.0
PHPUnit testing utilities for patchlevel/event-sourcing
🔗 https://github.com/patchlevel/event-sourcing-phpunit
PHPUnit testing utilities for patchlevel/event-sourcing
🔗 https://github.com/patchlevel/event-sourcing-phpunit
> 75% of what you read about CQRS on social media tries to turn it into something bigger (multiple dbs, read replicas, event sourcing, etc) and they're wrong. It's simply saying "Instead of a User service, have a UserRead and UserWrite service".
December 6, 2025 at 12:24 PM
> 75% of what you read about CQRS on social media tries to turn it into something bigger (multiple dbs, read replicas, event sourcing, etc) and they're wrong. It's simply saying "Instead of a User service, have a UserRead and UserWrite service".
🥶 The Main Event: Arctic Dominance After weeks of relatively mild conditions, the entire region is now under a strong northwesterly flow. This pattern is directly sourcing extremely cold air from the Arctic, giving us true Canadian winter weather.
December 5, 2025 at 5:22 PM
🥶 The Main Event: Arctic Dominance After weeks of relatively mild conditions, the entire region is now under a strong northwesterly flow. This pattern is directly sourcing extremely cold air from the Arctic, giving us true Canadian winter weather.
📦 ecotone/ecotone 1.278.0
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
December 5, 2025 at 8:59 AM
📦 ecotone/ecotone 1.278.0
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
Supporting you in building DDD, CQRS, Event Sourcing applications with ease.
🔗 https://github.com/ecotoneframework/ecotone
📦 ecotone/pdo-event-sourcing 1.278.0
Extends Ecotone with Event Sourcing using Prooph PDO Event Store
🔗 https://github.com/ecotoneframework/pdo-event-sourcing
Extends Ecotone with Event Sourcing using Prooph PDO Event Store
🔗 https://github.com/ecotoneframework/pdo-event-sourcing
December 5, 2025 at 8:59 AM
📦 ecotone/pdo-event-sourcing 1.278.0
Extends Ecotone with Event Sourcing using Prooph PDO Event Store
🔗 https://github.com/ecotoneframework/pdo-event-sourcing
Extends Ecotone with Event Sourcing using Prooph PDO Event Store
🔗 https://github.com/ecotoneframework/pdo-event-sourcing
I have half a mind to add a domain event based event sourcing extension to Ash.
At the very least, I have a hard time imagining rolling a JSON API by hand again.
I've spent the last two months just going ham with it to see what can be done and I think there's something to the premise.
At the very least, I have a hard time imagining rolling a JSON API by hand again.
I've spent the last two months just going ham with it to see what can be done and I think there's something to the premise.
December 5, 2025 at 12:29 AM
I have half a mind to add a domain event based event sourcing extension to Ash.
At the very least, I have a hard time imagining rolling a JSON API by hand again.
I've spent the last two months just going ham with it to see what can be done and I think there's something to the premise.
At the very least, I have a hard time imagining rolling a JSON API by hand again.
I've spent the last two months just going ham with it to see what can be done and I think there's something to the premise.
One of the things I have started doing in event sourcing is to return any output from a projection as a structure of:
projection id {int}
projection version {int}
as of event number {int}
value
Then whenever this value is used you can perform a "is this still correct" test on it.
projection id {int}
projection version {int}
as of event number {int}
value
Then whenever this value is used you can perform a "is this still correct" test on it.
December 4, 2025 at 12:12 PM
One of the things I have started doing in event sourcing is to return any output from a projection as a structure of:
projection id {int}
projection version {int}
as of event number {int}
value
Then whenever this value is used you can perform a "is this still correct" test on it.
projection id {int}
projection version {int}
as of event number {int}
value
Then whenever this value is used you can perform a "is this still correct" test on it.
Next thing I want to try with Event Sourcing is projectors that trigger arbitrary code when they're "caught up" with their events.
Ex. a new "Report v2" projector to replace the current one. You set it to build from all events. When it's "done", it flips a feature flag to start showing in the UI
Ex. a new "Report v2" projector to replace the current one. You set it to build from all events. When it's "done", it flips a feature flag to start showing in the UI
December 4, 2025 at 11:11 AM
Next thing I want to try with Event Sourcing is projectors that trigger arbitrary code when they're "caught up" with their events.
Ex. a new "Report v2" projector to replace the current one. You set it to build from all events. When it's "done", it flips a feature flag to start showing in the UI
Ex. a new "Report v2" projector to replace the current one. You set it to build from all events. When it's "done", it flips a feature flag to start showing in the UI
📦 patchlevel/event-sourcing-phpstan-extension 1.1.0
phpstan extension for patchlevel/event-sourcing
🔗 https://github.com/patchlevel/event-sourcing-phpstan-extension
phpstan extension for patchlevel/event-sourcing
🔗 https://github.com/patchlevel/event-sourcing-phpstan-extension
December 4, 2025 at 7:57 AM
📦 patchlevel/event-sourcing-phpstan-extension 1.1.0
phpstan extension for patchlevel/event-sourcing
🔗 https://github.com/patchlevel/event-sourcing-phpstan-extension
phpstan extension for patchlevel/event-sourcing
🔗 https://github.com/patchlevel/event-sourcing-phpstan-extension
Robert Kraus launches PopUpsByDesign.com, revolutionizing temporary event solutions with commission-free, creative venue sourcing for brands seeking unique marketing experiences. #EventPlanning #Innovation
December 3, 2025 at 7:58 PM
Robert Kraus launches PopUpsByDesign.com, revolutionizing temporary event solutions with commission-free, creative venue sourcing for brands seeking unique marketing experiences. #EventPlanning #Innovation
This has strong event sourcing vibes
December 3, 2025 at 10:35 AM
This has strong event sourcing vibes
Video of my Ruby and Event Sourcing talk at LRUG in November. In the second half I describe how I'm architecting the backend. lrug.org/meetings/202...
November 2025 Meeting | London Ruby User Group
The November 2025 meeting of LRUG will be on Monday the 10th of
November, from 6:00pm to 8:00pm (meeting starts at 6:30pm).
lrug.org
December 3, 2025 at 9:53 AM
Video of my Ruby and Event Sourcing talk at LRUG in November. In the second half I describe how I'm architecting the backend. lrug.org/meetings/202...
I tend to model fairly explicitly what causes me to write these relationships in the store (usually a side effect). In event sourcing speak, it's just another projection. On the other side, were one enforces security, is where I'd typically express the checks (openfga.dev/docs/getting...).
Perform a Check | OpenFGA
Checking if a user is authorized to perform an action on a resource
openfga.dev
December 2, 2025 at 6:27 PM
I tend to model fairly explicitly what causes me to write these relationships in the store (usually a side effect). In event sourcing speak, it's just another projection. On the other side, were one enforces security, is where I'd typically express the checks (openfga.dev/docs/getting...).
Genesis DB is a event sourcing database and there are the technical insights
https://docs.genesisdb.io/technical-insights
https://docs.genesisdb.io/technical-insights
December 1, 2025 at 11:30 PM
Genesis DB is a event sourcing database and there are the technical insights
https://docs.genesisdb.io/technical-insights
https://docs.genesisdb.io/technical-insights
Genesis DB is a event sourcing database and there are the technical insights
L: https://docs.genesisdb.io/technical-insights
C: https://news.ycombinator.com/item?id=46056700
posted on 2025.11.26 at 07:16:52 (c=1, p=4)
L: https://docs.genesisdb.io/technical-insights
C: https://news.ycombinator.com/item?id=46056700
posted on 2025.11.26 at 07:16:52 (c=1, p=4)
December 1, 2025 at 11:29 PM
Genesis DB is a event sourcing database and there are the technical insights
L: https://docs.genesisdb.io/technical-insights
C: https://news.ycombinator.com/item?id=46056700
posted on 2025.11.26 at 07:16:52 (c=1, p=4)
L: https://docs.genesisdb.io/technical-insights
C: https://news.ycombinator.com/item?id=46056700
posted on 2025.11.26 at 07:16:52 (c=1, p=4)
Introducing KurrentDB-Swift: Bringing Event Sourcing to Server-Side Swift
Introducing KurrentDB-Swift: Bringing Event Sourcing to Server-Side Swift
Event Sourcing is transforming how we build modern applications. Companies like Uber, Netflix, and...
forem.com
November 30, 2025 at 8:40 AM
Introducing KurrentDB-Swift: Bringing Event Sourcing to Server-Side Swift