Stefan Koell✓ Add us as a preferred source on Google

Mastodon @stefankoell@dotnet.social

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Followers

125

Account age

3 yrs

🎁 Free analysisfor Stefan Koell

🕵️Fake Followers CheckReal-audience % & bot risk→ 📊Engagement rateBenchmarked vs. peers→ 💰What they chargeFair sponsored-post price→

Known for

A progress indicator isn’t very reassuring when it freezes with the UI thread.
I built a CompositionRingSpinner for Avalonia that keeps animating through the composition renderer—even while the UI thread is busy.
The article covers the implementation, lifecycle, resource usage, limitations, and includes a ready-to-use sample:
https://code4ward.net/blog/2026/07/11/composition-ring-spinner/
#Avaloni

2 views A progress indicator isn’t very reassuring when it freezes with the UI thread. I built a CompositionRingSpinner for Avalonia that keeps animating through the composition renderer—even while the UI thread is busy. The article covers the implementation, lifecycle, resource usage, limitations, and includes a ready-to-use sample: https://code4ward.net/blog/2026/07/11/composition-ring-spinner/ #Avaloni

Why, @Apple? Apple is working on hard on losing me as a loyal customer. Software quality in decline, political controversies, AppStore power abuse, etc. Get daily kernel panics, probably related to the keyboard, so I ordered a new one. Look what they did. They crammed the fn key next to the control key. I f*cking hate @Apple for this. Impossible to work with that - especially if my MacBook keyboar

1 views Why, @Apple? Apple is working on hard on losing me as a loyal customer. Software quality in decline, political controversies, AppStore power abuse, etc. Get daily kernel panics, probably related to the keyboard, so I ordered a new one. Look what they did. They crammed the fn key next to the control key. I f*cking hate @Apple for this. Impossible to work with that - especially if my MacBook keyboar

📊 Post engagement

📊 Activity & format

Posting cadence

0.16 / week

A lower-frequency account — each post lands with more weight.

Content mix

Mostly text

Recent: 10 text · 1 image · 1 video.

Follower / following

0.8×

Follows 148 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗

🔥 Top post Had to replace the computer of my mother in law. She ran an old iMac with High Sierra. The machine was quite done and needed replacement but working with the UI of High Sierra was refreshing and delightful. Good contrast, still modern looking design, no huge corner radius window… ★ 3

This is how brand raputation works: I’ve been a huge fan of LG OLED TVs. In fact almost all my TVs are LG OLEDs. Luckily, mine don't have a microphone but still the whole deal with ACR is troubling. https://www.youtube.com/watch?v=6IFVTcM2… ★ 1

▶ A progress indicator isn’t very reassuring when it freezes with the UI thread. I built a CompositionRingSpinner for Avalonia that keeps animating through the composition renderer—even while the UI thread is busy. The article covers the imp… ★ 2 Looks like #Microsoft is driving us more and more to #Linux. As a small ISV we used to have the “Action Pack" which included enough Windows Client and Server licenses for a reasonable price (EUR 400/yr). Action Pack is not available anymor… ★ 1 @soltes may I ask what happened with the layout perf improvement PR on Ava repo? @soltes question regarding your Svg.Controls.Skia.Avalonia package (which is recommended): is there a way to get to the individual "Commands" in an SKPicture like it was possible in Svg.Controls.Avalonia (which is deprecated)? Looks like t… @firefoxwebdevs Moved away from Firefox. Among other reasons, the iPad app still can’t reorder tabs—an issue open for years. Add to that the direction they’re taking with AI integration, and it’s clear the priorities are off. I'm now using… @patriksvensson wanna talk? We’re hiring… ★ 1

Why, @Apple? Apple is working on hard on losing me as a loyal customer. Software quality in decline, political controversies, AppStore power abuse, etc. Get daily kernel panics, probably related to the keyboard, so I ordered a new one. Loo… ★ 1 This is how it should be done! #WWDC25 https://mastodon.social/@tuomas_h/114688413473414909 Unpopular opinion (maybe), but after watching the #wwdc keynote and after looking at some of the screenshots, I have to say that I now like the WinUI (native Windows 11 UI) more than the glassy UI look of upcoming Tahoe. I know they will r… Reminder for myself: if for some reason, Acrylic Blur doesn't work in Windows, check if "Energy saver" is active.

🐘 Community & instance

Home server

dotnet.social

Their home server on the fediverse — the instance a creator picks signals the community they belong to.

✅ Link-verified

Verified link

Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.

On Mastodon since

Dec 2022

Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2022 — 3 years ago.

👁️Averages 2 views per post.

📤Posts about 0.2× per week.

🕵️ Fake follower check

Estimated

75/100

Good Credibility score

92%

Real Real audience

Low Fake-follower risk

High Data confidence

Est. 92% real, active audience · Low fake-follower risk.
Engagement (~1.6% of followers engage each post) is around typical for Mastodon.
Verified account.
Established account (3+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

💚 Brand affinity

Estimated

Brands Stefan Koell's audience is most likely to respond to — from detected sponsorships in this niche.

Keeps

About

Dev, geek and creator of Royal TS (remote management tool).

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

🌿 50%

Robin St. Clare 18%

Simon newslttrs.com 17%

-rb 17%

Daily CyberSecurity 14%

Rexx Deane 🏳️‍🌈 12%

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Mastodon ＋

Simon newslttrs.com ✓

@spzb@infosec.exchange

@rexxdeane@mastodon.online

125 Followers

Mastodon ＋

🌿

@bodypoetic@assemblag.es

124 Followers

Mastodon ＋

Daily CyberSecurity

@dailycybersecurity@infosec.exchange

125 Followers

Mastodon ＋

Robin St. Clare

@robinwrites@writing.exchange

125 Followers

🏆 Awards & milestones

Next: 🟣 10K Followers — 9.9K followers to go

🛡️ Brand safety

✅Brand-safe90/100

✓ Verified / Partner account
✓ Established channel (3+ yrs)

A heuristic signal for brands from public data & recent titles — not a moderation verdict.

Details

PlatformMastodon

JoinedDec 2022 · 3 yrs

Followers125

Updated1 day ago

🤝 Brands they've worked with

✓ From their content

Sponsors Stefan Koell has actually partnered with — detected in their videos. Proof they take on & deliver brand deals.

Frequently asked questions

How much does Stefan Koell charge for a sponsorship?

Stefan Koell hasn't published fixed prices yet. Send a proposal through SocialDB and agree terms directly — your payment is held in escrow until the work is approved.

How do I contact Stefan Koell for a brand deal or collaboration?

Send a paid deal or collab request right here on SocialDB — we notify Stefan Koell, and once they accept, your payment is held safely in escrow and released when the work is approved. You don't need to track down an email.

How many followers does Stefan Koell have?

Stefan Koell has 125 followers on Mastodon.

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Known for

📊 Post engagement

📊 Activity & format

Recent posts

🐘 Community & instance

💡 Facts

🕵️ Fake follower check

💚 Brand affinity

About

🔀 Audience overlap

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Frequently asked questions

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