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Rob Sessink

@yucca.io
172 followers 459 following 51 posts

Mountainbiker and Snowboarder for fun! Architect and (Dis)Integrator by trade.

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Rob Sessink @yucca.io · 09/10/2026
Today's riding was Col du Mille with a mild and stunning snowcover. Great day on the bike! #mtb #mtbverbier #verbier
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M. C. Escher @mcescher.bsky.social · 28/09/2026
Circle Limit I botfrens.com/collections/12055/cont…
Circle Limit I
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Steef-Jan Wiggers @steefjan.bsky.social · 25/08/2026
"Is it built?" and "Can we operate it?" are different questions. A platform can pass the first comfortably and fail the second completely, and the second one decides go-live. On production readiness and the execution gap: sjwiggers.com/2026/08/25/f...
sjwiggers.com
Production Readiness: Closing the Execution Gap - Cloud Perspectives
Explore the concept of production readiness and understand what it truly means for your integration platform.
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Chad Fowler @chadfowler.com · 19/08/2026
The specification is not a document. This is a long one. I’m trying to work through what the durable artifact of software becomes when code is cheap to regenerate, and what that means for documentation, production evidence, decisions, evaluations, and provenance.
aicoding.leaflet.pub
The Specification Is Not a Document
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Rodney Brooks @rodneyabrooks.bsky.social · 02/08/2026
Just published a shot blog post on four different time scales that technology development and deployment works at simultaneously. It is short. rodneybrooks.com/four-time-sc...
rodneybrooks.com
Four Time Scales for Technology Development and Deployment – Rodney Brooks
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Tim O'Reilly @timoreilly.bsky.social · 28/07/2026
Why we should all be hoping for the AI bubble to pop and preparing for the opportunity to turn that into a golden age. Deeply rooted in Carlotta Perez's theory of the role of bubbles in technological revolutions. x.com/i/status/207...
x.com
Vijay Pande (@vijaypande) on X
https://t.co/LFtxExihQl
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Rob Sessink @yucca.io · 13/06/2026
Hiking the steep trail of Verada do Calhau with stunning views on the hills and cliffs of Achadas da Cruz. #madeira #hiking
Verada do Calhau downwards looking from the path to the sea with plants on the rocksVarada do Calhau, steep trail downwards to Fajã da Quebrada NovaAlmost at Fajã da Quebrada Nova, just crossing the rocks on the shoreline.Outlook from Verada do Calhau to the sea and Quebrada do Sardinha.
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Rob Sessink @yucca.io · 31/05/2026
One step further in defining a #SDLC for an event driven architecture using open standards and specifications like #jsonschema #cloudevents #asyncapi Experimenting how good agents and tooling can generate code artifacts using models: JSON schema, CloudEvent definitions and a registry. So far 👌🏻
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Rob Bowley @robbowley.net · 29/05/2026
A senior engineer, three years deep helping lead AI augmented coding adoption in ~4000 engineer organisation, writing honestly about their experiences. Very good and worth a read. jamiehurst.co.uk/2026-05-24_a...
jamiehurst.co.uk
Jamie Hurst's Blog - Is this sustainable?
Jamie Hurst - Software and System Engineer, Enthusiast of Terrible Cars
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New_ Public @newpublic.org · 26/05/2026
How do we ensure that the gatekeepers of tomorrow earn and keep our trust? If they’re really coming (and we think they probably are), how do we shape them to support us rather than shape us? More on what happens to social technology “After the Feed” here: newpublic.org/afterthefeed
Light background with teal "The New New Gatekeepers" label. Text reads "These agentic interfaces are becoming the medium for social life and information online" (with teal text for "medium for social life and information online"). Below states "They respond with everything you need to know, curated for you, in the format you prefer" (with teal text for "curated for you").
Two boxes comparing eras. "Platform Era" box: Optimizing for human attention, Surfacing unaltered human-posted content, Posting on very human timeline, AI ranking and recommending in background. "Agentic Interface Era" box: Content/data/systems optimized for agent attention, Content and conversation summarized or transformed by AI, AI creating content at inhuman speed and scale, AI in foreground summarizing/remixing/sharing.
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Rob Sessink @yucca.io · 21/05/2026
Our #Stoneman Arduenna adventure. Multiday #mtb tour in the Belgium Ardennes. Hard and rewarding! #YouRock
Stoneman Arduenna sign on a treeOutlook on Belgium Valley in the ArdennesOutlook from Stoneman Arduenna checkpointOut last Stoneman checkpoint with the yourock sign
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Shivam Bhatt @shivambhatt.bsky.social · 17/04/2026
This picture of Astronaut Christina Koch after the Artemis landing is frankly incredible and beautiful.
NASA astronaut Christina Koch sits in an U.S. Navy MH-60S Seahawk attached to Helicopter Sea Combat Squadron (HSC) 23 on the flight deck of the San Antonio Class amphibious transport dock USS John P. Murtha (LPD 26) after returning from space on Apr. 10, 2026.
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Rob Sessink @yucca.io · 15/04/2026
#Splitboarden and #skitouren in #Lyngen Norway
Little Fjord of Legangen
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Oliver Morton, Eater of Sun @eaterofsun.bsky.social · 11/04/2026
This should be a hugely dynamic time for Europe. The democratic world need new energy and leadereship, it needs alternatives, it needs nations with global outlooks that are also resolutely non-imperial. This challenge/opportunity is not being met.
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Benjy Stanton @benjystanton.co.uk · 28/02/2026
“If Europe wants change, it cannot simply recreate the same model under a different logo. It must move beyond the document-and-format architecture altogether.” ia.net/topics/trapp...
ia.net
Trapped in MS Office
Seeking IT independence, Europe wants to escape Microsoft Office. The question is: where to?
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Rob Bowley @robbowley.net · 11/03/2026
thedecisionstack.com
When Software Becomes Cheap, Strategy Becomes Everything
Most companies are applying AI at the wrong level. When software gets cheap, the moat isn't technology — it's strategic clarity.
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Dane Owens @owendanes.bsky.social · 10/03/2026
Pretty crazy how important the blockade of a trade route is right now
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Oliver Gould @olix0r.net · 05/03/2026
it's amazing how there's a renaissance of great terminal interfaces
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Que Mário? - Mesa 56 FIQ-BH! @masquemario.bsky.social · 01/03/2026
GAG 😱 youtu.be/ReLnaKkktQ0?...
youtu.be
ROSALÍA - BERGHAIN (Live at Brits Awards 2026 HD)
YouTube video by Rosalía Lyrics
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Hans L’Hoest @hanlho.com · 23/02/2026
Lots of highlights for me in this article from @suksr.bsky.social susannekaiser.net/building-fou...
susannekaiser.net
Building Foundations for Continuous (AI-accelerated) Change - Susanne Kaiser
AI doesn’t fix your bottlenecks. It amplifies them. DORA’s report on AI-assisted software development [1] confirmed that AI amplifies existing flow and exposes brittle processes and frictions. If your...
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Simon Willison @simonwillison.net · 15/02/2026
Short musings on "cognitive debt" - I'm seeing this in my own work, where excessive unreviewed AI-generated code leads me to lose a firm mental model of what I've built, which then makes it harder to confidently make future decisions simonwillison.net/2026/Feb/15/...
simonwillison.net
How Generative and Agentic AI Shift Concern from Technical Debt to Cognitive Debt
This piece by Margaret-Anne Storey is the best explanation of the term cognitive debt I've seen so far. Cognitive debt, a term gaining traction recently, instead communicates the notion that …
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Kevin M. Gill @kevinmgill.bsky.social · 11/02/2026
A crescent view of Earth seen through the lunar module window of the outbound Apollo 15 mission in late July 1971. Along with the thinly illuminated Earth, the camera picked up a lot of sun glare on the thick window glass. flic.kr/p/2rW2tui
A thin crescent Earth in the black of space and sun glare.

NASA/Apollo 15/Kevin M. Gill
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Lorin Hochstein @norootcause.surfingcomplexity.com · 09/02/2026
New blog post: Nobody knows how the whole system works surfingcomplexity.blog/2026/02/08/n...
surfingcomplexity.blog
Nobody knows how the whole system works
One of the surprising (at least to me) consequences of the fall of Twitter is the rise of LinkedIn as a social media site. I saw some interesting posts I wanted to call attention to: First, Simon W…
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Simon Martinelli @martinelli.ch · 03/02/2026
New blog post ✍️ Spec-driven development is not a return to waterfall. AI makes coding faster, but speed was never the real problem. The real bottleneck is still requirements and specifications. 👉 Read the post: martinelli.ch/why-spec-dri...
martinelli.ch
Why Spec-Driven Development Can Be Iterative, Incremental, and Agile - Martinelli
Whenever I talk about AIUP and Spec-driven Development, I often hear the same concern: “This sounds like Waterfall.” That reaction is understandable. For many developers, words like requirements, spec...
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David Whitney @davidwhitney.co.uk · 03/02/2026
LLM code gen is allergic to software design. It's a side-effect of limited context - drives it to primitive obsession and a bunch of other smelly designs. You can navigate it to good outcomes, but it's very reflective of the difference between "scripts" and "software" if you don't pay attention.
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Martin Rak @martinrak.bsky.social · 25/01/2026
Snowy landscape in the Central Bohemian Uplands
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Ted Stryk @tedstryk.bsky.social · 24/01/2026
Today in 1986, Voyager 2 made humanity's first and only encounter with Uranus, revealing its clouds, rings, and fascinating zoo of moons.
Uranus and its rings as Voyager approached it from the southUranus, enhanced to make discrete clouds visibleThe rings of Uranus in a deep exposure.  The spacecraft tracked rings, so the stars are smeared and appear as trails.The major moons of Uranus to scale.
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Aaron Rupar @atrupar.com · 20/01/2026
Carney: "American hegemony in particular helped provide public goods, a stable financial system... this bargain no longer works. Let me be direct. We are in the midst of a rupture, not a transition... recently, great powers have begun using economic integration as a weapon. Tariffs as leverage ... "
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Li Chen @exocomics.com · 05/01/2026
the new year
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Andy Pavlo @andypavlo.bsky.social · 05/01/2026
I've posted my latest recap of the world of databases: www.cs.cmu.edu/~pavlo/blog/... All the hot topics from the last year: • More Postgres action! • MCP for everyone! • MongoDB gets litigious with FerretDB! • File formats! • Market movements! • The richest person in the history of the world!
cs.cmu.edu
Databases in 2025: A Year in Review
The world tried to kill Andy off but he had to stay alive to to talk about what happened with databases in 2025.
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Rodney Brooks @rodneyabrooks.bsky.social · 01/01/2026
Just published my annual predictions update, tracking from Jan 1st 2018, with new commentary and new ten year predictions. It is long. rodneybrooks.com/predictions-...
rodneybrooks.com
Predictions Scorecard, 2026 January 01 – Rodney Brooks
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Li Chen @exocomics.com · 29/12/2025
daily routine
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Rob Sessink @yucca.io · 31/12/2025
Hoi @volkskrant.nl , waarom krijg ik dit soort push reclame als ik voor een abonnement betaal?
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IO+ @nl.ioplus.nl · 20/12/2025
World-Class Industry? Alleen met een World-Class Society ioplus.nl/nl/posts/world-class-indu…
ioplus.nl
World-Class Industry? Alleen met een World-Class Society
Wie alleen inzet op ‘verdienvermogen’, loopt het risico de samenleving te verliezen, waarschuwt Tilburg University.
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Rob Sessink @yucca.io · 20/12/2025
@nieuws.nos.nl eerlijke vraag. Waarom worden acties van/rondom Trump en Amerikaanse politiek veelvuldig gebracht als prominente artikelen op de NOS app. Wat is de relevantie hier voor Nederland? Zoals dit item nos.nl/l/2595329, vanwaar die focus, er gebeurt toch wel meer nieuwswaardigs in de wereld?
nos.nl
Trump voegt eigen naam toe aan prestigieuze Kennedy Center in Washington
De raad van toezicht, waar sinds dit jaar vooral Trump-loyalisten in zitten, heeft ingestemd met een naamsveradering.
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Allen Holub @allenholub.bsky.social · 22/11/2025
Let’s talk about “Move fast and break things.” First of all, Facebook itself changed its motto to “Move fast with stable infrastructure” in 2014. So much for breaking things, at least if you’re a soulless corporate behemoth. 1/12
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Rob Sessink @yucca.io · 26/10/2025
Autumn walk and finding abundant mushrooms on dead wood in the Slangenburg.
Mushrooms on dead wood in the Slangenburg
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Rob Bowley @robbowley.net · 02/10/2025
The idea of AI as a new abstraction for software keeps coming back – prompts as the source of truth, code as an artefact. Why it won't work any time soon, even if things like non-determinsim and hallucination become solved problems.
blog.robbowley.net
Why AI won’t work as a software development abstraction | Rob Bowley
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Rob Sessink @yucca.io · 09/09/2025
Biking roundtrip on the #Ameland after the #tri-ambla. The #wadden are beautiful!
ameland hadden with low tideameland hadden with low tide and people searching for seafoodameland wadameland dunes and lighthouse
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Andrea Magnorsky @roundcrisis.com · 01/09/2025
Coordination is not free -- And the corollary, the more systems (of software or people ) need to interact to make change, the higher the cost
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Jack Vanlightly @vanlightly.bsky.social · 15/07/2025
Where does reliability begin, and where does it end? In distributed business architectures, the answer is responsibility boundaries. New post: jack-vanlightly.com/blog/2025/7/...
jack-vanlightly.com
Responsibility Boundaries in the Coordinated Progress model — Jack Vanlightly
Building on my previous work on the Coordinated Progress model, this post examines how reliable triggers not only initiate work but also establish responsibility boundaries . Where a reliable tri...
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shauna @goldengateblond.bsky.social · 11/07/2025
everything is terrible so here’s the swedish chef doing rapper’s delight
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Bert Hubert 🇺🇦🇪🇺🇺🇦 @berthubert.bsky.social · 11/07/2025
People say that to be relevant in the cloud again, you first have to spend dozens of billions on data centers before you can meaningfully compete. But this is entirely not the case. US clouds are in practice not cheap at al and the cloud does not scale like a factory: berthub.eu/articles/pos...
berthub.eu
The cloud is not an outclassed chemical plant - Bert Hubert
There is a lot of recent discussion about digital autonomy and Europe’s “position in the cloud”. Here, I want to break down and refute a commonly made argument: that the lead of American cloud provide...
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developer.overheid.nl @developer.social.overheid.nl.ap.brid.gy · 09/07/2025
📋 Input gevraagd voor de consultatie van de REST API Design Rules 2.0.0! Onze collega's van @forumstandaardisatie horen graag jouw mening voordat deze op de "Pas toe of leg uit"-lijst zal belanden. developer.overheid.nl/blog/2025/07/…
developer.overheid.nl
Consultatie NL Profiel CloudEvents en REST API Design Rules 2.0.0 | developer.overheid.nl
Forum Standaardisatie toetst het verplichten ("Pas toe of leg uit") van NL GOV profile for CloudEvents en NLGov Rest API Design Rules 2.0 aan de overheid. Via internetconsultatie.nl kunt u beide voorstellen bekijken en uw mening geven. Dit kan tot en met dinsdag 5 augustus. Uw inbreng is van groot belang.
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Jessica Kerr @jessitron.bsky.social · 21/06/2025
On real problems, one cannot define away the complexity of the world in the interest of devising an elegant solution. - preface to Software Fundamentals, Parnas.
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Jack Vanlightly @vanlightly.bsky.social · 11/06/2025
How to reliably distribute work across microservices, stream processors, durable execution, event-driven, orchestration and now AI agents? Coordinated Progress is a 4 part series that explores the common structure behind reliable distributed systems. jack-vanlightly.com/blog/2025/6/...
jack-vanlightly.com
Coordinated Progress – Part 1 – Seeing the System: The Graph — Jack Vanlightly
At some point, we’ve all sat in an architecture meeting where someone asks, “ Should this be an event? An RPC? A queue? ”, or “ How do we tie this process together across our microservices? Should it ...
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purr.in.ink @purrinink.bsky.social · 04/05/2025
A little purr for you from the galaxy far, far away. (Sound on) 🐈‍⬛🤍 #cat #purr #maythe4thbewithyou
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Charity Majors @charity.wtf · 26/03/2025
I stumbled across this essay as I was falling asleep last night, and left myself multiple emphatic reminders to remember to circle back to it today. "The joy we're about to lose...we'll become overseers rather than creators, managers rather than builders." annievella.com/posts/the-so...
annievella.com
The Software Engineering Identity Crisis - Annie Vella
Many of us became software engineers because we found our identity in building things. Not managing things. Not overseeing things. Building things. With our own hands, our own minds, our own code. But...
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Rob Sessink @yucca.io · 27/03/2025
infinite stars artwork at #teamlabs #tokyo
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Rob Sessink @yucca.io · 25/03/2025
Tranquility of Meiji Shrine and Park amidst Tokyo. #Tokyo #Meiji
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