iiinova — where your digital self keeps evolving

Roman Müller - C#/.Net @roman-d-mueller.ch · 30/09/2026

Updating my main PC to the latest version of Windows 11, version 26H2 #devlife #windows11 #PC

Windows Update
Update in progress

Windows 11, version 26H2

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Roman Müller - C#/.Net @roman-d-mueller.ch · 29/09/2026

Neuer Rekord @20minuten.bsky.social Headline 3mal wiederholt. Wärs weniger reisserisch, hätte ich eventuell gelesen.

EU-Showdown im Ständerat: Das sind die wichtigsten Punkte.

(Dann noch zweimal diese Headline vom geteilten Artikel, da auch der Artikel die Headline nochmals wiederholt)

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Roman Müller - C#/.Net @roman-d-mueller.ch · 11/09/2026

Making progress in optimizing my local AI setup with an MSI RTX 3090 (24GB VRAM GPU) on my 128GB RAM i7, using Qwen 3.8 27B open weight model. Using VS Code with Github Copilot as my Agent harness for now. #devlife #indiedev #AI #Qwen Building a chat system that might or might not go public.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 27/08/2026

Ein Anlass verschiebt sich. Zwölf Plakate hängen schon. Bei uns ist das ein Datum am Projekt und kein Korrekturdruck: die Codes teilen sich den Termin, nicht die Regeln. Ein Wechsel wirkt in unter einer Sekunde auf alle zwölf. Anfragen an mich oder an www.linkedin.com/in/mattbae/

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Roman Müller - C#/.Net @roman-d-mueller.ch · 23/08/2026

Those who have witnessed software developed by the company's CEO using AI will understand... #devlife

$ cat joke.txt

There are 10 types of developers:

Those who send their users a link to http://localhost:8000

And those who understand binary.

$

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Roman Müller - C#/.Net @roman-d-mueller.ch · 15/08/2026

Went to fly in gliders with my son today. Local airfield Schänis held an event for beginners where we could fly with experienced pilots. Managed to be in the air at the same time and enjoyed a moment of formation flying. #flugplatzschaenis

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Roman Müller - C#/.Net @roman-d-mueller.ch · 26/07/2026

Seriously, Anthropic? Are you actively working towards me cancelling my subscription? #devlife #mcp #Fable5 #Opus5 (creating some templates for standard elements in steel constructions)

Stock ranges are listed, and an off-list size gets an echoed note — flat bar 47 × 5 is not a stock size — while still building. Anything can be ordered; the nudge is there because off-list costs money and lead time, which is easy to forget when a number is just a parameter.

steel/plate.scad
plate(200, 150, 10)
base_plate(160, 160, 10, holes = grid_pattern(110, 110), hole_d = 22, chamfer = 12)
gusset(45, 60, 8, snipe = 9)
base_plate takes any list of [x, y] hole centres — grid_pattern() from fasteners/pattern.scad gives the usual four, or write them out. chamfer snips the corners at 45°.
snipe clips the gusset's right-angle corner so the rib clears the fillet weld already lying in that corner. That's a real fabrication detail, not decoration — without it the rib fouls the weld.
One deliberate decision: hole_d is not derived from a bolt size. Anchor holes run well oversize of the bolt for grout and setting tolerance, and how much is a site decision — 22 mm for an M16 here, but that's mine to suggest and yours to set. Deriving it would have hidden a choice that ought to be explicit.

The palette is complete now: profiles (UPN, IPE, HEA/HEB, angle, hollow), bar, plate, fasteners with holes and joints, and welds that switch off for export.

Fable 5's safeguards flagged this message
The safeguards are intentionally broad right now and may flag safe and routine coding, cybersecurity, or biology work. These measures let us bring you Mythos-level capabilities sooner, and we're working to refine them. Switched to Opus 5.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 20/07/2026

Finally could spend the time to hook up the liquid level sensor to an ESP32S3 with RS485 and install the sensor in the overflow tank of our infinity pool and write the software for it. Then a rewrite of the hardware-node for the chlorinator/electrolyzer/pH-control and the multivalve #devlife #ESP32

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Roman Müller - C#/.Net @roman-d-mueller.ch · 10/07/2026

Hello new ESP32S3 dev board with wide DC input voltage range and RS485 interface. I am going to use one of those to upgrade my Tesla Wall Connector Gen2 to support solar optimised charging.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 19/06/2026

Doing code reviews for stuff my colleagues in Madrid are producing. I have so many questions... #devlife

public ServiceType? GetServiceType()
{
if (Service?.ServiceType is null)
{
return null;
}

return Service.ServiceType;
}

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Roman Müller - C#/.Net @roman-d-mueller.ch · 13/06/2026

Consumption of the ESP32S3 with PoE for the network: 1.42W Reading from the SolarEdge inverter and the Victron battery system at 1Hz intervals. It also provides a web interface for live data, configuration and triggering OTA.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 13/06/2026

The proxy got a little friend now. A monitor (SignalR client) connecting to the SolarEdge Modbus proxy which is also a SignalR server. All in Rust using my own SignalR server and client implementations. The monitor runs on a #ESP32 C6 with 1.47" display.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 17/05/2026

Perfect conditions: 30kW production, limited by the inverter, with 35.77kWp installed DC Feeding almost 24kW into the grid (unfortunately the cars are charged already)

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Roman Müller - C#/.Net @roman-d-mueller.ch · 03/05/2026

Aaaaand back home. After a total of 1784.6km Exhausted, but relaxed at the same time.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 03/05/2026

So I had to come up with plan E by now. My son found a red CEE16 plug under the loading ramp. Good thing I had packed my Tesla UMC. Now we are charging with 11kW. Just enough to make it to a 22kW charger. The problem with e-mobility is not the lack of charging infrastructure.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 03/05/2026

Managed to restart. Regen down the hill and make it another 500m to an Illwerke charger. 2x CCS, no more Type2. No problem, E- Werke Frastanz has the whole parking lot full of them. Except the ones for clients are turned off and the ones for their company cars don't work with my cards

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Roman Müller - C#/.Net @roman-d-mueller.ch · 03/05/2026

Stopped in the North of Innsbruck but couldn't get more than 90% in. Charge stopped at 80%, restarted manually. This looks like reverse #coldgate

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Roman Müller - C#/.Net @roman-d-mueller.ch · 03/05/2026

Past Salzburg, and at another triple charger just after the border into Germany, but at night, no problem. This car is actually a charging beast.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 03/05/2026

After a detour because of road works and a missed off-ramp, we had another nail biter, but made it to an alternative charger no problem

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Roman Müller - C#/.Net @roman-d-mueller.ch · 03/05/2026

Then continued through Karavanken tunnel, stopped at the reliable 150kW which also features a Type2 with 22kW

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Roman Müller - C#/.Net @roman-d-mueller.ch · 03/05/2026

And some more charge stops. At a Lidl (after waiting for a BMW using the CCS) Those stupid triple chargers should be replaced

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Roman Müller - C#/.Net @roman-d-mueller.ch · 02/05/2026

And now we are at the Four Points by Sheraton, location of the Tesla Supercharger Ljubljana

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Roman Müller - C#/.Net @roman-d-mueller.ch · 02/05/2026

Now the power is dropping. Time to wrap it up and head on

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Roman Müller - C#/.Net @roman-d-mueller.ch · 02/05/2026

Did anyone say SOC% curves are linear? Sure they are, kinda with offsets at the bottom and the top. And not at the same offset for charging and discharging. This is done to make a (compliance) EV look really bad. At this point we will add another 4kWh roughly.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 02/05/2026

This longer charge stop gives me time to fix an annoying bug in the UI. #devlife #codingWhileCharging

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Roman Müller - C#/.Net @roman-d-mueller.ch · 02/05/2026

After 19min of charging, we are back at 44%

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Roman Müller - C#/.Net @roman-d-mueller.ch · 02/05/2026

After topping up at Lidl while getting some snacks and drinks for the road, we drove the first 92.3km and arrived at a charger in Slovenia that was supposed to be 22kW but turns out to be only 11kW. Well, I guess any electrons help

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Roman Müller - C#/.Net @roman-d-mueller.ch · 01/05/2026

I wish more people would understand and respect this.

Paper table mat with this text:

It's in our nature to waste food.

Let's honor this by reducing food waste, one plate at a time. Take only what you need and savor every bite.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 01/05/2026

Looking for chargers too But out of order. Back at Lidl it worked.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 25/04/2026

Arrived at the hotel in Poreč after 823km Awesome drive. Feeling super relaxed. Who would have thought you can do this with a 12 year old electric smart with a tiny battery.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 16/04/2026

My new solution for the old #smart451ed solves those issues by constantly looking at the battery, calculating true consumption, accurately predicting consumption for the route and planning charging stops accordingly. (I know, I need to keep an eye on cell# 13)

screenshot of the layout of battery cells:
3 modules with 31 cells each, showing voltages of the cells, total values for the pack

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Roman Müller - C#/.Net @roman-d-mueller.ch · 16/04/2026

"Range anxiety is a software problem." The problem with an old EV with very limited range is not the limited range. The problem is that these cars don't know where the chargers are and they don't tell you if you can make it to a charger or not. It can be solved. #EV #Software #dotnet #Rust #CSharp

A map of parts of Switzerland, northern Italy and Austria with an overlay of an EV route with some red markers that indicate charge stops and a lot of smaller blue and green dots marking additional chargers in a 5km corridor along the route.

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Roman Müller - C#/.Net @roman-d-mueller.ch · 16/04/2026

Testing some new features on the charge screen, as a cloud just covered the roof and the automatic power adaption of my Tesla WallConnector Gen2 kicked in. #ESP32 #RaspberryPI #Rust #CSharp #AvaloniaUI #smart451ed

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Roman Müller - C#/.Net @roman-d-mueller.ch · 16/04/2026

Back home from another test drive. The smart 451 electric drive custom made navigation and charge planner is taking shape. Are 10 different trip meters enough? "Range anxiety is a software problem." #ESP32 #smartED #Rust #dotnet #RaspberryPI

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Roman Müller - C#/.Net @roman-d-mueller.ch · 14/04/2026

Debugging and deploying new firmware to the Raspberry PI on the road (in a parking lot) to fix a GPS issue #Rust #ESP32 #smartED #RaspberryPI #SurfaceARM