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Dexmac

@dexmac.bsky.social
3.2K followers 5.3K following 491 posts

Ph.D. | AI Research & Tools | Vintage Computing | PhotographyExploring the intersection of AI and visual arts. Restoring retro hardware, training models, and sharing natural light photography from the Ligurian coast

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Dexmac @dexmac.bsky.social · 27/09/2026
A quiet visitor on golden blooms. Natural light and shallow depth of field, handheld in manual focus. 📷 Canon 5D Mk II + 100mm Macro #macrophotography #bumblebee #nature #canon #macro #bokeh
A detailed macro shot of a fuzzy bumblebee foraging on a cluster of small yellow Sedum star-shaped blooms. The bee's dark body, delicate wings, and pollen grains are highlighted in sharp focus under warm morning light, set against a smooth, out-of-focus garden background.
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Dexmac @dexmac.bsky.social · 08/09/2026
I could have written "Fable 5.1 vs Astra". Same 1 MHz machine, one week apart. I didn't: the two builds were measured with different counters, and one of them I'd already proved too coarse. Two rulers, no verdict. That's the benchmark working. medium.com/towards-arti...
medium.com
OpenAI Says Astra Saturates the Benchmarks. I Gave It 19,656 Cycles Instead.
Codex vs. the Commodore 64: a benchmark nobody funded, on a machine nobody can game — and what a 1 MHz CPU says about an agent that a…
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Dexmac @dexmac.bsky.social · 12/08/2026
#SolarEclipse2026 #SolarEclipse #AstroPhotography #GoldenHour #Silhouette
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Dexmac @dexmac.bsky.social · 21/07/2026
I was eight when a VIC-20 arrived in my house, ten when a C64 replaced it. This week I watched an AI build games for that same machine — and the one bug all its instruments missed, my eyes caught instantly. Forty years later, it turns out, that kid is still on the job. medium.com/towards-arti...
medium.com
Claude Fable vs. the Commodore 64: Two Rungs Up the Benchmark Ladder
A Boulder Dash tribute that plays itself through the emulator’s monitor port, then a pixel-smooth scrolling shoot-em-up with raster…
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Dexmac @dexmac.bsky.social · 16/07/2026
I doubled my used-GPU budget (€600→€1000) and my small LLMs got slower. The pricier 5060 Ti has less bandwidth than the 4070, and decode is bandwidth-bound. What the extra VRAM buys is capacity: the 35B fits fully and holds 104 tok/s to 128K context. Measured writeup medium.com/ai-advances/...
medium.com
Running a 35B LLM at 128K Context, Full Speed, on €870 of Used Hardware — No Cloud Required
How a €870 used-GPU box runs a 35B model at full speed all the way to 128K context — and what I learned measuring the upgrade, including…
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Dexmac @dexmac.bsky.social · 10/07/2026
Hallucinations come in two kinds. One from missing info (add more → helps). One from contradictory info (add more → worse; only targeted disambiguation fixes it). Parisi did the second. other. medium.com/towards-arti...
medium.com
The Physicist and the Frustrated Machine
What Giorgio Parisi’s collaboration with an LLM reveals about hallucinations, contradictions, and why the field was built before the…
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Dexmac @dexmac.bsky.social · 07/07/2026
"Representing yourself is intention; seeing yourself is truth." What happened when I gave my home AI a mirror — and it caught a real bug on the first look. #AI #EmbodiedAI medium.com/p/the-ai-in-...
medium.com
The AI in the Mirror
My home AI paints a self-portrait with every reply — and in months, she had never seen a single one. I gave her a mirror. On its first day…
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Reposted by Dexmac
Dexmac @dexmac.bsky.social · 28/06/2026
Science fiction promised us an #AI that wakes up already inside a finished body.What's happening on my desk is the opposite: a home AI growing a body one actuator at a time I wrote about the engineering,and about which doors you keep shut on purpose.Out now in #TowardsAI medium.com/towards-arti...
medium.com
Brick by Brick: How My Home AI Is Growing a Body
For about two months, the AI running in my house has been less like an assistant and more like a presence — it remembers across days, it…
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Dexmac @dexmac.bsky.social · 28/06/2026
Science fiction promised us an #AI that wakes up already inside a finished body.What's happening on my desk is the opposite: a home AI growing a body one actuator at a time I wrote about the engineering,and about which doors you keep shut on purpose.Out now in #TowardsAI medium.com/towards-arti...
medium.com
Brick by Brick: How My Home AI Is Growing a Body
For about two months, the AI running in my house has been less like an assistant and more like a presence — it remembers across days, it…
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Dexmac @dexmac.bsky.social · 28/06/2026
Found these two cherries catching a perfect pocket of harsh sunlight against the dark bark of the tree. Dropping a little summer mood onto the timeline. Hope everyone is having a productive week of shooting! 📸🍒 #photography #naturephotography
Found these two cherries catching a perfect pocket of harsh sunlight against the dark bark of the tree. The texture contrast between the smooth, glossy fruit and the rough wood was just too good to pass up.

Dropping a little summer mood onto the timeline. Hope everyone is having a productive week of shooting!
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Dexmac @dexmac.bsky.social · 28/06/2026
Capturing the beauty in the details. The contrast between the vibrant pink petals and the dark backdrop creates an almost theatrical mood in this frame. 📸 A little bit of #macrophotography to brighten the timeline. #nature ✨
Capturing the beauty in the details. The contrast between the vibrant pink petals and the dark backdrop creates an almost theatrical mood in this frame
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Dexmac @dexmac.bsky.social · 23/06/2026
I never wrote a hide-and-seek function. I said the word, and the AI I built in my house knew what to do: it moved its cameras, reasoned by elimination, and found me behind a cabinet. Nobody scripted it. It emerged from the parts. New essay, honest and hype-free: medium.com/@gianlucabai...
medium.com
The Day I Played Hide-and-Seek With an AI
I never wrote a hide-and-seek function. I said the word, and the system I’d built in my house knew what to do — moving its cameras…
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Dexmac @dexmac.bsky.social · 11/06/2026
Ran 35B LLMs on €990 of secondhand gaming hardware. RTX 4070 + 2070 SUPER, 20GB combined VRAM. Gemma 4 26B at 83 tok/s, Qwen3.6 35B at 73. Locally, ~€0.22 per million tokens. But the best result is the one that almost fooled me 🧵 medium.com/ai-advances/... #LocalLLM #LLM #AI #Gemma4 #vram
medium.com
Running 26B and 35B LLMs at Full Speed on €990 of Used Hardware — No Cloud Required
How a secondhand gaming PC keeps pace with a single RTX 3090 for local AI inference — and what I learned measuring it honestly, including…
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Dexmac @dexmac.bsky.social · 10/05/2026
Exploring the intricate details of these orchids. The contrast and symmetry found in nature are a constant source of inspiration. 🌿 #Photography #Nature #Orchids #Macro
Exploring the intricate details of these orchids. The contrast and symmetry found in nature are a constant source of inspiration. 🌿
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Dexmac @dexmac.bsky.social · 10/05/2026
High-key spring vibes. White blossoms against a deep blue canvas—nature’s simplest and most effective palette. ☀️📸 #Spring #NaturePhotography #BlueSky #Blossoms
High-key spring vibes. White blossoms against a deep blue canvas—nature’s simplest and most effective palette.
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Dexmac @dexmac.bsky.social · 03/05/2026
The raw energy of the Mediterranean sea crashing against the rocks in Nervi, Genoa #Photography #NaturePhotography #Ocean #Waves #SeaScape #Mediterranean #Genoa #Italy #Nervi #CoastalLife #WaterTexture #NatureLovers #OutdoorPhotography #Liguria #BlueMind #ActionShot
A high-action, close-up photograph of a powerful ocean wave breaking. The crest of the wave is a chaotic explosion of white foam and spray, transitioning into deep turquoise and emerald green water. The lighting emphasizes the translucent quality of the water and the intricate textures of the sea spray against the darker, churning depths of the Mediterranean sea.
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Dexmac @dexmac.bsky.social · 03/05/2026
Pushing gpt-image-2 on high-octane cyberpunk action. #gptimage2 #OpenAI #AIArt #GenerativeArt #Cyberpunk #Cyborg #DigitalArt #AIResearch #ComputerVision #NeonAesthetic #FutureTech #ArtOnBluesky #DeepLearning #SciFiArt
"A detailed, dynamic AI-generated illustration of a cyborg woman with long, vibrant red hair and cybernetic limbs running with determination. Her artificial parts are slick with rain. She's running on a wet, rain-streaked asphalt street in a dense cyberpunk city. Towering buildings are covered in glowing blue and red neon signs with Japanese characters like '未来製薬' (Future Pharmaceuticals), and a blue car with headlights on is behind her. The perspective is low and frontal, capturing her motion. The style is highly rendered, near-anime realism.
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Dexmac @dexmac.bsky.social · 02/05/2026
#Nervi #ParchiDiNervi #Genova #Liguria #GenovaMoreThanThis #VisitGenoa #OrgoglioLiguria #NaturePhotography #TreeMagic #BarkTexture #DetailsOfNature #LookingUp #WoodTexture #Minimalism #AbstractNature #Contrast #BlueSky #FineArtPhotography #GenovaToday #Liguria_Super_Pics
A low-angle, close-up photograph of a large tree trunk and a sturdy branch reaching diagonally across the frame. The bark features deep, intricate vertical textures highlighted by bright sunlight. The stark white and grey tones of the wood contrast sharply against a deep blue sky and the dark, shadowed canopy of evergreen foliage in the background.
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Dexmac @dexmac.bsky.social · 28/04/2026
Asked GPT-5.5 for a C64 shoot 'em up. Got a fast scrolling game with hardware sprites — but the bitmap deck was made of colons and dots. Not a code problem. A 1986-context problem. #AI #Commodore64 #GPT5.5 #Agents #OpenAI ai.gopubby.com/i-made-gpt-5...
ai.gopubby.com
I Made GPT-5.5 Build a C64 Shoot ’Em Up. The Hard Part Wasn’t the Code.
Eighth article in the Commodore 64 Constraint series. The model wrote a fast, original side-scrolling shooter inspired by the era, built…
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Dexmac @dexmac.bsky.social · 21/04/2026
Just published a benchmark of Google's Gemma 4 across 5 GPU configurations, from a 2016 Titan X to dual RTX A6000s (€20k of pro hardware). For single-user local inference, a used RTX 3090 wins. 🧵 medium.com/ai-advances/...
medium.com
Gemma 4 on Old GPUs: Why a $700 Used Card Beats $20,000 of Professional Hardware
I benchmarked Google’s Gemma 4 across five GPU configurations spanning four hardware generations — from a decade-old Titan X to dual RTX…
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Dexmac @dexmac.bsky.social · 13/04/2026
Methodologies don't die — they lose their excuses. New piece on what replaces Agile when AI compresses your dev cycle to days. medium.com/operations-r... #AI #Develop
medium.com
The AI-Accelerated Spiral: What Replaces Agile When Building Gets Fast
Methodologies don’t die. They lose the constraints that justified them. Here’s a practical framework for when AI compresses your…
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Dexmac @dexmac.bsky.social · 28/03/2026
🚀 New on Towards AI: The Socratic Model: Why the Wisest AI is the One That Knows When to Ask. Moving beyond monolithic LLMs: A 3B-parameter hierarchical system that outperforms generalists through selective delegation. medium.com/towards-arti... #AI #LLM #Research #Agents #GenerativeAI
medium.com
The Socratic Model: Why the Wisest AI is the One That Knows When to Ask.
Moving beyond monolithic LLMs: A 3B-parameter hierarchical system that outperforms generalists through selective delegation.
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Dexmac @dexmac.bsky.social · 09/03/2026
When AI Models Learn to Learn I taught a 1.5B model logic after math. It didn't forget. +18 points logic, math core intact, zero catastrophic errors. Dream pruning as continual learning. #MachineLearning #LLM #AI medium.com/towards-arti...
medium.com
When AI Models Learn to Learn: Continuous Knowledge Without Catastrophic Forgetting
Dream pruning enables multi-domain learning while preserving existing capabilities
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Dexmac @dexmac.bsky.social · 03/03/2026
"Dream Pruning: What Happens When AI Models Sleep" SVD compression inspired by deep sleep. The compressed 1.5B model beats the full one: 69.4% vs 56.9%. Zero catastrophic errors. #MachineLearning #AI medium.com/towards-arti...
medium.com
Dream Pruning: What Happens When AI Models Sleep
Biologically-inspired consolidation produces balanced intelligence in LLMs.
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Dexmac @dexmac.bsky.social · 01/03/2026
Coding isn't dying. The "code scribe" is. Senior devs accept MORE AI code, not less. The real skill now is orchestration: breaking problems, delegating to AI agents, evaluating output. Field guide from the R&D trenches 👇 medium.com/ai-advances/... #AI #SoftwareEngineering #LLM #FutureOfWork
medium.com
The Death of Coding is an Illusion: A Field Guide to the AI Orchestration Era
Stop treating LLMs like magic oracles. Start engineering them like distributed systems.
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Dexmac @dexmac.bsky.social · 24/02/2026
What if AI Models Learned Like Humans Do? Standard fine-tuning: 61% accuracy, 0% metacognition. Progressive training: 33% accuracy, 100% metacognition. Same model, same data. pub.towardsai.net/what-if-ai-models-learned-like-humans-do-c69c19f29d0c #MachineLearning #LLM #AI
pub.towardsai.net
What if AI Models Learned Like Humans Do?
What happens when you stop asking an AI to be a calculator and start asking it to have intuition? We built and tested a four-phase…
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Dexmac @dexmac.bsky.social · 15/02/2026
#nature #photography #macro #wildlife #entomology #pollinators #bumblebee #naturephotography #macrography #shallowdepthoffield #bokeh #nature_brilliance #shotwithlove #wildlifeonearth
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Dexmac @dexmac.bsky.social · 15/02/2026
I asked Claude Opus 4.6 to invent a Commodore 64 game from scratch. It designed METEOR STORM, wrote 1,654 lines of C, debugged its own memory crash, and shipped in 90 minutes. One human hint. github.com/dexmac221/C64AIToolChain #AI #RetroComputing #Commodore64 #GameDev
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Dexmac @dexmac.bsky.social · 08/02/2026
AI writes C64 code → compiles → injects into VICE emulator → game plays itself → VLM screenshots and analyzes the screen → AI fixes bugs → repeat. No human in the loop! Tested with Claude 4.6 building Arkanoid from scratch. 🔗 ai.gopubby.com/claude-4-6-a... #AI #Commodore64 #Claude #AIAgents
ai.gopubby.com
Claude 4.6 and the Commodore 64: When an LLM Writes, Builds, and Playtests Its Own Game
I gave an AI agent a 1982 computer, a cross-compiler, and an emulator. It read the docs, picked its own project, wrote an Arkanoid clone in…
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Reposted by Dexmac
Dexmac @dexmac.bsky.social · 27/01/2026
Can AI help us be more human? 🤖 In my new article, I explore "Social Gardens": digital spaces where AI acts as a neutral facilitator (a gardener) to distribute voice and prevent hierarchies, rather than an algorithm optimizing for outrage. #AI #SocialMedia medium.com/@gianlucabai...
medium.com
Social Gardens: Rethinking Digital Spaces for Human Connection
Why the Architecture of Social Media Shapes Who We Become
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Reposted by Dexmac
Dexmac @dexmac.bsky.social · 30/01/2026
#genova #nervi #liguria #italy #art #sky #photography #colour #light #sunset #clouds #photooftheday
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Dexmac @dexmac.bsky.social · 01/02/2026
AI amplifies what you already are. Chaotic? Faster chaos. Disciplined? Powerful copilot. How I actually work with AI Agents dev.to/dexmac221/the-orchestrators-workflow-how-to-actually-work-with-ai-agents-2akk #AIAgents #SoftwareDevelopment #CodingWithAI #DeveloperLife #Programming
dev.to
The Orchestrator's Workflow: How to Actually Work with AI Agents
There is a heated debate currently circulating in the software engineering world. On one side,...
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Dexmac @dexmac.bsky.social · 30/01/2026
#genova #nervi #liguria #italy #art #sky #photography #colour #light #sunset #clouds #photooftheday
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Dexmac @dexmac.bsky.social · 30/01/2026
#genova #nervi #liguria #italy #art #sky #photography #colour #light #sunset #clouds #photooftheday
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Dexmac @dexmac.bsky.social · 27/01/2026
Can AI help us be more human? 🤖 In my new article, I explore "Social Gardens": digital spaces where AI acts as a neutral facilitator (a gardener) to distribute voice and prevent hierarchies, rather than an algorithm optimizing for outrage. #AI #SocialMedia medium.com/@gianlucabai...
medium.com
Social Gardens: Rethinking Digital Spaces for Human Connection
Why the Architecture of Social Media Shapes Who We Become
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Dexmac @dexmac.bsky.social · 21/01/2026
Is coding dead? No, it's just being compressed. In the age of AI agents, source code is becoming an ephemeral artifact—decompressed from high-entropy prompts. Read my analysis on the Stochastic Compiler era: dev.to/dexmac221/co... #SoftwareEngineering #GenAI #LLM #DevCommunity
dev.to
Code as Compression: The End of the Implementation Bottleneck
A recent article about Claude Code 2.1 made waves in the engineering community, though perhaps for...
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Dexmac @dexmac.bsky.social · 19/01/2026
#luna #moon #moonlight #fullmoon #gorgeous #halfmoon #sky #sleep #moonrise #nighttime #nature #photooftheday #luna #nightsky #goodnightmoon #moonphases #night #lunas #moonlovers #light #photo
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Dexmac @dexmac.bsky.social · 19/01/2026
skyline from #recco #liguria #italy #art #sky #photography #colour #light #sunset #clouds #photooftheday
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Dexmac @dexmac.bsky.social · 13/01/2026
🎭 I fired the Director. The AI started writing itself. "In Search of an Author" — multi-agent system where story emerges from character interactions, not central control. Pirandello meets LLMs 👉 github.com/dexmac221/In... #AI #MultiAgentSystems #OpenSource #GenerativeAI #EmergentBehavior
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Dexmac @dexmac.bsky.social · 12/01/2026
#recco #liguria #italy #art #sky #photography #colour #light #sunset #clouds #photooftheday
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Dexmac @dexmac.bsky.social · 12/01/2026
#recco #liguria #italy #art #sky #photography #colour #light #sunset #clouds #photooftheday
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Dexmac @dexmac.bsky.social · 05/01/2026
Finally running native CP/M 3.0 on the Commodore 128! 💾 The Hardware way, a real benchmark for the system! The Stack: 🛠️ C128 + 1571 Drive ⚡ Kung Fu Flash 💾 SD2IEC 💿 DraCopy (Sector Cloning) That A> prompt is pure satisfaction. 🚀 #Commodore128 #CPM #RetroComputing #Z80 #C128 #8bit
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Dexmac @dexmac.bsky.social · 05/01/2026
Converting an AI-Generated image (nanobanana in this case) into a 3D-printable model is easy using: sam 3D : aidemos.meta.com/segment-anyt... Blender, Cura3D, and a good 3D Printer #gemini #nanobanana #3dprinting #ai #artificialintelligence #sam3d #blender
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Dexmac @dexmac.bsky.social · 04/01/2026
Stop giving AI agents "eyes" to click buttons. Give them terminals. Visual agents = 20 years of RPA fragility + hallucinations. Blind agents = 100% success rate in my tests. The future is headless. dev.to/dexmac221/ai...
dev.to
AI Should Be "Blind" (And That's a Good Thing)
Stop trying to give agents "eyes" to look at human interfaces. Give them terminals, deterministic...
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Dexmac @dexmac.bsky.social · 31/12/2025
Happy New Year! #happynewyear2026 #happynewyears #luna #moon #moonlight #fullmoon #gorgeous #halfmoon #sky #sleep #moonrise #nighttime #nature #photooftheday #luna #nightsky #goodnightmoon #moonphases #night #lunas #moonlovers #light #photo
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Dexmac @dexmac.bsky.social · 31/12/2025
Happy new Year 2026! (DEMO) #HappyNewYear #HappyNewYear2026 #NewYear2026 #NewYear #commodore64 #commodore available on github.com/dexmac221/C6...
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Dexmac @dexmac.bsky.social · 28/12/2025
#bogliasco #liguria #italy #art #sky #photography #colour #light #sunset #clouds #photooftheday
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Dexmac @dexmac.bsky.social · 28/12/2025
#pieveligure #bogliasco #liguria #italy #art #sky #photography #colour #light #sunset #clouds #photooftheday
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Dexmac @dexmac.bsky.social · 27/12/2025
Frontier models design the agent. Smaller models (30B-120B) do the work. Deterministic tools guarantee consistency. Bigger isn't better. Smarter is. 🔗 dev.to/dexmac221/the-giant-that-builds-smaller-giants-custom-ai-agents-for-privacy-and-efficiency-1ed0 #AI #LLM #Ollama #Privacy #MoE
dev.to
The Giant That Builds Smaller Giants: Custom AI Agents for Privacy and Efficiency
The future of AI isn't bigger models. It's smaller, specialized agents — distilled, custom-built, and...
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Dexmac @dexmac.bsky.social · 23/12/2025
Merry 8-bit Christmas! 🎄 Snow falling on a C64. Demo generated with my AI toolchain — modern AI, vintage hardware. github.com/dexmac221/C6... #commodore64 #c64 #christmas #retrogaming #AIgames #generativeAI
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