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Andrzej Leszkiewicz

@avatorl.bsky.social
464 followers 286 following 269 posts

Power BI Developer and Consultant Data Explorer, Visualizer, Explainer IBCS® Certified Analyst

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Reposted by Andrzej Leszkiewicz
Andrzej Leszkiewicz @avatorl.bsky.social · 28/09/2026
There are subreddits where it's hard to defend AI usage, even when it's really useful (and is used as a tool for a brain, not as a brain replacement). Some r/PowerBI posts make me think that people supposed to work with data are more prone to turning off their brains.
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Reposted by Andrzej Leszkiewicz
Ben @dataferrytales.bsky.social · 22/09/2026
This is a generalisation, however, the data industry is an embarrassment. The willingness we have displayed to relinquish our knowledge, skills, and critical thinking is worrying at best, but closer to truly pathetic. I'm struggling to comprehend how bad it has become in such a short space of time.
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Andrzej Leszkiewicz @avatorl.bsky.social · 27/08/2026
#PowerBI #Fabric
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Andrzej Leszkiewicz @avatorl.bsky.social · 21/08/2026
I have a bridge to sell you. All your problems are caused by "rigid" bar charts. "Pretty" vibe-coded HTML visualizations full of special effects are what will turn your struggling business into a train loaded with easy money.
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Andrzej Leszkiewicz @avatorl.bsky.social · 20/08/2026
"I didn’t read your post, but I disagree" because “AI” in the title triggered me. Some people never used AI properly, yet they claim AI is bad because “you learn AI and nothing more.” Anyone trying to learn is learning, with or w/o AI. Anyone trying to take shortcuts w/o learning isn't learning.
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Andrzej Leszkiewicz @avatorl.bsky.social · 05/08/2026
Hello, EU, NATO! WTF do you need to notice the war? A nuke?
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Andrzej Leszkiewicz @avatorl.bsky.social · 04/08/2026
4,000,000 inches #NATO #Poland #Polska
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Andrzej Leszkiewicz @avatorl.bsky.social · 03/08/2026
We definitely need a place free of fascists, russists, russian trolls, crazy billionaires/trillionaires, flat earthers etc. Bluesky exists because a specific group of people escaped from X to Bluesky to avoid fascists, russists, russian trolls, crazy billionaires/trillionaires, flat earthers etc.
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Reposted by Andrzej Leszkiewicz
Andrzej Leszkiewicz @avatorl.bsky.social · 01/08/2026
Crazy Sam. He won't believe that kids can walk (!) to school without listening to a stupid robot and without paying Sam.
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Andrzej Leszkiewicz @avatorl.bsky.social · 03/07/2026
02.06.2026 A church in Krasnodar, Russia. The Russian Orthodox Church is a significant part of #putinjugend system of children indoctrination and military training. Italy and Bulgaria are opposing an EU proposal to sanction (not even arrest and hang) Russian Patriarch Kirill...
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Reposted by Andrzej Leszkiewicz
Drew Harwell @drewharwell.com · 12/06/2026
New from me: The cops who AI-enhance blurry photos to try to catch suspects are actually just tampering with evidence, lying to the public and raising the risk of wrongful arrests
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Andrzej Leszkiewicz @avatorl.bsky.social · 11/05/2026
youtu.be/Gxpt8XZrku0?... #putinjugend in russian kindergarten. Visual perception training: be a soldier when you see blue and yellow, be happy when you see red flags. It's more dangerous than Hitlerjugend. It's the second generation of Putin's children.
youtu.be
День Победы 9 мая утренник в садике 😊👍
YouTube video by Станислав Полухин
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Reposted by Andrzej Leszkiewicz
Victoria Rose Richards @aerialembroidery.bsky.social · 03/05/2026
'Beltsville Agricultural Research Centre', Maryland - I was privately commissioned to memorialise the BARC by a past employee after learning it will be shut down by the USDA after over 100 years of research. They wanted to focus of this aerial embroidery to be the field plots... 1/3 (see thread)
An embroidery hoop containing an aerial view embroidered landscape. It depicts the BARC in Maryland with green and brown field plots and a building area in the bottom right corner.A zoomed-in angled view of an aerial embroidery. It shows field plots and buildings.A zoomed-in angled view of an aerial embroidery. It shows field plots and buildings.
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Andrzej Leszkiewicz @avatorl.bsky.social · 16/04/2026
Ad blocker is a thing of the past. I'm using #AI to build my personal news portal, scrape, categorize and filter information from multiple websites, forums, etc. into a personalized feed in 3 languages with no ads, no images and no clutter. Signal instead of noise. I decide what I read and when.
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Andrzej Leszkiewicz @avatorl.bsky.social · 10/04/2026
Scammers armed with AI, are trying to build better hooks to catch us. I never posted any article with "linked consulting/service resource" and not giving any "backlinks". 2) "we recently published" links is fake and leads to something like r564.f6.ds.send743.com (I'm not posting the real address).
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Andrzej Leszkiewicz @avatorl.bsky.social · 10/04/2026
Newspapers and radio created people supporting Hitler. TV and internet created people supporting Putin. Internet and social media created people supporting Trump. AI is going to create ... ???
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Reposted by Andrzej Leszkiewicz
Data Rocks @t.datarocks.co.nz · 09/04/2026
There is a trend I am seeing more in the Business Intelligence space, driven by AI shenanigans, that I find really concerning, and I really want to write about it. That web design look you get using Tailwind, CSS, React is not desirable, nor useful with Business Intelligence tools. 🧵 📊
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Andrzej Leszkiewicz @avatorl.bsky.social · 05/04/2026
#dataviz 📊 There are good charts. There are bad charts. There are charts that show truth. There are charts that lie. This one tells the truth about how dictatorship and fascist regimes work with data and dataviz.
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Andrzej Leszkiewicz @avatorl.bsky.social · 04/04/2026
📊 This is an idea, a vision. The current version is far from the goal. This is not even a beta version. Treat it as a public pre-alpha version of a vibe-coding experiment. But it's not on a localhost:5174 anymore (you know that joke about vibe-coded web app). orpheus.powerofbi.org
orpheus.powerofbi.org
Orpheus Dashboard Builder
Design Deneb, Vega, and Vega-Lite charts on a drag-and-drop canvas. Build Power BI-ready dashboards in the browser.
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Reposted by Andrzej Leszkiewicz
Philip Bump @pbump.com · 04/04/2026
Here is the last How To Read This Chart. It is mostly about human insignificance! www.howtoreadthisch.art/on-to-new-fr...
howtoreadthisch.art
On to new frontiers
I was sitting on set at MS NOW yesterday evening as I was introduced — Philip Bump, MS NOW contributor and author of "How To Read This Chart" — and I realized, oh, crud, I probably should have anticip...
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Andrzej Leszkiewicz @avatorl.bsky.social · 04/04/2026
Well cradted and presented (really painful in some cases of my own experience) truth about how wrong project management and software development principles damage businesses intelligence and data visualization 📊
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Reposted by Andrzej Leszkiewicz
Andrzej Leszkiewicz @avatorl.bsky.social · 26/03/2026
Nazi Germany would not ask permission to bomb London, and without aerial bombings of Nazi Germany by the Allies, there will be no Europe as we know it. Russians would not ask permission to bomb Europe. The Ottawa Treaty created enough weakness. We don't need one more.
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Andrzej Leszkiewicz @avatorl.bsky.social · 26/03/2026
www.powerofbi.org/2026/03/26/s... #PowerBI 📊
powerofbi.org
Should You Build a Custom Power BI Visual? - Power of Business Intelligence
You have a data visualization problem, and you believe that it requires a new vibe-coded custom visual for Power BI on the Marketplace; here is … Read More
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Reposted by Andrzej Leszkiewicz
Visual Studio Code @vscode.dev · 25/03/2026
On Wednesdays, we ship! 🚀 This week’s VS Code highlights include the new Customization window: a central place to manage all chat customizations.
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Andrzej Leszkiewicz @avatorl.bsky.social · 21/03/2026
deathbyclawd.com
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Andrzej Leszkiewicz @avatorl.bsky.social · 19/03/2026
Windows Event Viewer is not the best tool for analyzing Windows logs, especially in 2026. A laptop unexpectedly shut down 3 times during the last few days. GitHub Copilot CLI quickly found 3 thermal shutdown events. #GitHubCopilot #CopilotCLI
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Andrzej Leszkiewicz @avatorl.bsky.social · 19/03/2026
PowerBI 📊
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Andrzej Leszkiewicz @avatorl.bsky.social · 19/03/2026
2+2=4 You learned that when you was a kid and had 2 eyes. Today you also have 2 eyes. You have 4 eyes total. Custom Total. #PowerBI March 2026
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Andrzej Leszkiewicz @avatorl.bsky.social · 18/03/2026
AI recommendation after looking at Windows Logs: - Uninstall Power BI Desktop (it was crashing anyway)
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Andrzej Leszkiewicz @avatorl.bsky.social · 17/03/2026
Working with a Power BI semantic model using GitHub Copilot CLI on an Android phone. #AI #GitHubCopilot #CopilotCLI #PowerBI
Screenshot of an Android phone with GitHub Copilot CLIScreenshot of an Android phone with GitHub Copilot CLI, list of measures in Power BI semantic model.
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Andrzej Leszkiewicz @avatorl.bsky.social · 13/03/2026
PowerofBI.IBCS version 0.11.0 📊 IBCS-guided charts embedded in core matrix and button slicer visuals. daxlib.org/package/Powe...
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Andrzej Leszkiewicz @avatorl.bsky.social · 09/03/2026
IBCS-guided charts with Just Core Power BI Visuals and DAX Andrzej will show how to transform a lackluster and ineffective Power BI matrix or table into a highly effective data visualization 📊. datapointprague.cz#tickets
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Andrzej Leszkiewicz @avatorl.bsky.social · 07/03/2026
The Paralympic Games are going to be a utterly disgusting bloody demonstration of international corruption and cynicism.
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Andrzej Leszkiewicz @avatorl.bsky.social · 27/02/2026
The first video will help you start a GitHub Copilot subscription and start using GitHub Copilot in Visual Studio with Power BI MCP Server to review and edit Power BI Desktop data models, and to create your first custom agent to streamline Power BI modeling tasks. youtu.be/__PrstrIr2A?...
youtu.be
GitHub Copilot in Visual Studio Code for Power BI Developers. Part 1.
YouTube video by Data Visualization in Power BI and Beyond
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Andrzej Leszkiewicz @avatorl.bsky.social · 24/02/2026
Exciting! I have just created a bunch of AI agents and skills and they turned an SQL database into a Power BI report backed by a medallion architecture warehouse in one short prompt. Not a production-grade solution, but still an impressive experiment with the AdventureWorks2014 dummy dataset.
A screenshot of Visual Studio Code. A list of custom agents and skills opened in Explorer.A screenshot of a star schema data model.A screenshot of a simple Power BI report (3 cards, column chart, line chart with basic default formatting).List of tasks the AI agents accomplish in one prompt:

- Create a new Fabric Lakehouse  
- Create a database connection via an on-premises data gateway  
- Create a pipeline for copying data from an on-prem SQL Server database to the Lakehouse  
- Run the pipeline and copy data to the 'bronze' schema  
- Create a notebook for copying data from the 'bronze' schema to the 'silver' schema  
- Run the notebook and copy data to the 'silver' schema  
- Create a new Fabric Warehouse  
- Create a stored procedure for transforming the 'silver' schema into a star schema-based 'golden' schema (selects required tables and columns, joins tables, etc.)  
- Run the stored procedure and copy data to the 'golden' schema  
- Create a semantic model with a star schema  
- Create a Power BI report with a few simple charts
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Andrzej Leszkiewicz @avatorl.bsky.social · 17/02/2026
From chaos to a clean model view in one prompt: "start" (can't start an agent with an empty prompt). It also created a separate view for each star. Claude Opus 4.6 in VS Code GitHub Copilot + custom Agent #PowerBI
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Andrzej Leszkiewicz @avatorl.bsky.social · 16/02/2026
AI hallucinates! Meanwhile people: "Earth is flat", "kids should not be vaccinated", "Trump is the best president in Universe", "Russia wants peace", "I stopped 88 wars between Cambodia and Iceland"
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Andrzej Leszkiewicz @avatorl.bsky.social · 16/02/2026
What many people don't understand is that people will always produce hallucinations, make mistakes and deliberately lie. You can't trust people. We don't need absolute super intelligence that is never wrong, to have an artificial intelligence capable of replacing people.
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Andrzej Leszkiewicz @avatorl.bsky.social · 16/02/2026
Updated my gallery of the charts created using the DAX Lib PowerofBI.IBCS package. Fabric notebook POSTs report page thumbnails to WordPress. The report embedding plugin generates a navigation menu. Thumbnails are embedded in the navigation buttons. #PowerBI #Fabric #PowerBIEmbedded #DAXLib
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Andrzej Leszkiewicz @avatorl.bsky.social · 15/02/2026
Testing AI Reasoning: Converting SVG to Native Chart with Claude Opus 4.6
powerofbi.org
Testing AI Reasoning: Converting SVG to Native Chart with Claude Opus - Power of Business Intelligence
While everyone is using AI to replace core visuals with custom visuals using SVGs (I don’t like that trend), I do the opposite—turning my SVG … Read More
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Andrzej Leszkiewicz @avatorl.bsky.social · 12/02/2026
datapointprague.cz Advanced customization of the core Power BI visuals and slicers 📊. Full-day, hands-on preconference workshop by @avatorl.bsky.social
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Andrzej Leszkiewicz @avatorl.bsky.social · 11/02/2026
Russian language is not an easy one: "we're not nazis, nazis are against other nations, we're not" (RU) = "you (Ukrainians) are not a nation" (EN) "we're against any wars" (RU) = "we have to kill everyone and there will be no wars anymore" (EN)
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Andrzej Leszkiewicz @avatorl.bsky.social · 11/02/2026
The Real Power of the New Slicers. Turn Your Slicers into Charts. 📊 Power BI and Fabric Summit 2026. Day 2. Room 2. powerbisummitapp.azurewebsites.net/SingleAgenda...
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Andrzej Leszkiewicz @avatorl.bsky.social · 09/02/2026
Cool 📊#dataviz! I've found myself, and I see a lot of familiar profile images and names nearby in the Microsoft Data Platform Professionals galaxy in the Bluesky universe.
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Andrzej Leszkiewicz @avatorl.bsky.social · 08/02/2026
What makes this chart unreliable? You would think it's the Y axis and the truncated columns. But it's the logo on the top. Not everything can be fixed with best practices of dataviz 📊
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Andrzej Leszkiewicz @avatorl.bsky.social · 06/02/2026
daxlib.org/package/Powe... PowerofBI.IBCS DAX Lib Package version 0.8.0 has been published: ➡️ New function: PowerofBI.IBCS.ColumnChart.Stacked (stacked column chart with top N and Others) ➡️ Parameter descriptions and code comments added for all functions in the package
An example of a sacked column chart created using ColumnChart.Stacked function and Button Slicer
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Andrzej Leszkiewicz @avatorl.bsky.social · 04/02/2026
Great news, we have resolved a million issues. It's 99,999998% progress - only two issues remain. The issues: russia wants to destroy Ukraine, Ukraine wants to exist.
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Andrzej Leszkiewicz @avatorl.bsky.social · 28/01/2026
📊
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Andrzej Leszkiewicz @avatorl.bsky.social · 25/01/2026
The Revolution of Dignity in Ukraine happened not because Yanukovych refused to sign the EU association agreement, but because of police violence against people on the streets protesting against Yanukovych refusal to sign the agreement.
Minneapolis
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Andrzej Leszkiewicz @avatorl.bsky.social · 18/01/2026
Just in case there will be any good reason for me to visit the US and CBP wants to know whether I should be allowed to be in the US. The US is a fascist country, and Trump is a crazy wannabe king who belongs in prison. Neither Ukraine nor Denmark land and people belong to crazy fascists.
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