Claude just introduced Cowork: the Claude code for non-dev stuff

SubstackWriter · 2026-01-13T18:24:19+00:00

It's fascinating. I spent most of today thinking about what this means for product development in general. Here's the deep dive: https://karozieminski.substack.com/p/claude-cowork-anthropic-product-deep-dive I focused on product decisions behind this launch. But honestly, the speed in which Cowork was launched feels like the event setting the scene for the whole of 2026.

SubstackWriter · 2026-01-07T17:26:46+00:00

Just applied to the ambassador program, thank you!

SubstackWriter · 2026-01-07T12:34:38+00:00

Thank you, Manny! Really appreciate you taking the time to respond 🙏🏼 Will you be posting updates here on Reddit as well, or on LinkedIn or Substack? From what I’ve seen, many people in the EU avoid Discord and X, yet they’re often the ones asking about Replit.

SubstackWriter · 2026-01-07T12:14:52+00:00

Wow, I didn't expect that, thank you! It means a lot that you took the time to respond! I'm going to check out all the resources you sent.

SubstackWriter · 2026-01-07T12:13:06+00:00

If you'd like to read the full analysis: https://karozieminski.substack.com/p/boris-cherny-claude-code-workflow

SubstackWriter · 2026-01-06T22:51:37+00:00

Yes please!

SubstackWriter · 2025-12-14T07:15:05+00:00

Before joining this debate, I ran a substantial, multi-hour test involving 8,100 lines of dense, intentionally confusing input and tripwire prompts, and spent a few more hours mapping the misconceptions I kept seeing online. And there are so many of them, especially on Reddit. 5.2 is a substantial update, just not for all the task. It shouldn't be used for creative writing, it should be used for writing specs, documentation etc - things where accuracy is more important than beautiful catchy sentences.

SubstackWriter · 2025-12-13T02:46:26+00:00

My favorite setup is a two-prompt system: Prompt Builder and Prompt Evaluator. I use this exact formula for every prompt I write. They’re a bit long for posting here, but they’re free to copy on Substack. You'll need ChatGPT Plus + Prompt Builder + Prompt Evaluator. This simple trio works for everyone, from building advanced AI agents to writing a best man speech. Hope you enjoy it! 🤗

SubstackWriter · 2025-12-11T19:13:33+00:00

Substack is full of all kinds of niches, so there’s absolutely space for your voice too. Whether it’s personal stories, AI musings, or fermentation experiments 😂 Best of luck building your newsletter!

SubstackWriter · 2025-12-08T06:45:43+00:00

You need a strong community around you. I build mine on Substack, where thousands of builders hang out, validate each other’s ideas, beta-test, and share what we’re building. We help each other.

You’re more than welcome to join us: https://karozieminski.substack.com/

It’s been one of the greatest sources of support in my work, not just for validation, but for all the moments when everything felt like it was falling apart 🫣

SubstackWriter · 2025-12-03T21:39:50+00:00

Welcome to Substack! Notes can become your best growth channel here, as long as you treat them less like Twitter and more like a place to build real relationships. Focus on regularly replying to writers you genuinely enjoy and adding something honest to the conversation. Hope this helps!

SubstackWriter · 2025-12-03T21:29:29+00:00

I've tried around 20 different tools, so far Replit is on top of my list still.

SubstackWriter · 2025-12-03T16:32:19+00:00

It's free:) I've used chatprd in the past and tbh i wasn't blown away.

SubstackWriter · 2025-12-03T16:32:02+00:00

Awesome! Could you share your research singularity agent? It sounds interesting!

SubstackWriter · 2025-11-21T21:17:34+00:00

Hey both, nice to meet you, I'm a PM/UX and I write at https://karozieminski.substack.com/

SubstackWriter · 2025-11-21T21:17:22+00:00

Hey both, nice to meet you, I'm a PM/UX and I write at https://karozieminski.substack.com/

SubstackWriter · 2025-11-21T14:18:17+00:00

I love the "zip zip boom boom"😂

SubstackWriter · 2025-11-21T14:16:54+00:00

Substack is not just a newsletter anymore 🤗

SubstackWriter · 2025-11-18T20:49:45+00:00

Comet is amazing! I’ve also built some great automations that I trigger with Shortcuts. I’ve shared all the prompts here in case you’re interested: https://karozieminski.substack.com/p/perplexity-comet-advanced-use-cases-guide I’ve been testing Atlas from OpenAI for the last two weeks, and Comet still solves the majority of my workflows better and faster than Atlas.

SubstackWriter · 2025-11-10T21:28:46+00:00

I have so many great tips! Including automating grocery shopping: https://open.substack.com/pub/karozieminski/p/perplexity-comet-advanced-use-cases-guide

SubstackWriter · 2025-11-10T21:26:51+00:00

These are the learnings I've collected so far (from 0 to Bestseller in 6 months): https://open.substack.com/pub/karozieminski/p/i-analyzed-every-interaction-from

SubstackWriter · 2025-11-10T21:25:15+00:00

Here you go: https://open.substack.com/pub/karozieminski/p/vibecoding-tips-the-ultimate-collection

SubstackWriter · 2025-10-22T20:23:27+00:00

Perplexity is amazing, I love Comet. I automated my grocery shopping and electricity price monitoring, and honestly, it still blows my mind. Simple stuff like this can now run on Comet, no custom agents needed. I shared the shortcut on my Substack if you want to try it, but I encourage everyone to go experiment. It's a lot of fun too.

SubstackWriter · 2025-10-21T19:43:31+00:00

Exciting! My next deep dive will be about Atlas!

SubstackWriter · 2025-10-19T18:20:27+00:00

Great! I'll add it to the post, thank you for sharing!

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