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Mitch Denny

@mitchdenny.dev
642 followers 410 following 770 posts

Core contributor to Aspire with over 30 years of industry experience building and shipping software. I've worked as a code slinger, CTO and everything in between.

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Mitch Denny @mitchdenny.dev · 28/09/2026
One thing that I wish macOS did better was multi-monitor support. I have two fairly recent Dell monitors on my desk daisy chained via thunderbolt (to mac) and DP (to second monitor). And when I plug in the mac its hit and miss as to whether its going to work or not.
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Mitch Denny @mitchdenny.dev · 14/09/2026
Not sure if I was talking to chat bot or a human, but either way I think they missed the point of what I said:
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Mitch Denny @mitchdenny.dev · 06/09/2026
Experimenting with the idea of #hex1b having its own web-based terminal renderer that uses WebGPU. All of the terminal state stays server side with the Hex1bTerminal instance, but state updates are transmitted over the wire via a websocket to some JS code that renders onto canvas.
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Mitch Denny @mitchdenny.dev · 03/09/2026
Sixels is a pretty old school terminal graphics capability which has gotten a bit of more attention recently. Increasingly modern terminal are adopting Kitty Graphics Protocol - but there are some terminals out there that support Sixels. Here is WezTerm running a simulation.
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Mitch Denny @mitchdenny.dev · 01/09/2026
KGP animation support in a Hex1b TUI application. The terminal in this case is Kitty (because Ghostty doesnt' support animation in the current released build). But what I am showing off here is Hex1b handling composing and animating multiple images including occlusion in the TUI framework.
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Mitch Denny @mitchdenny.dev · 31/08/2026
Fresh terminal emulator challenge. This video shows a Hex1b app with multiple independent terminal widgets running inside the TUI framework - but the interesting thing is that KGP graphics are flowing through from the nested terminals to the outer terminal. Needed this for a feature in Aspire 13.6
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Mitch Denny @mitchdenny.dev · 29/08/2026
12 months ago I would never have believed that I could give a coding agent a prompt like this and expect that it would do the right thing (using #GitHub app BTW):
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Reposted by Mitch Denny
Aaron Powell (@slace) @aaron-powell.com · 25/08/2026
It's finally out, Aspire Community Toolkit 13.5 with support for @aspiredotdev 13.5, 13(!!!) new integrations and a bunch of bug fixes - github.com/CommunityToo... #dotnet #aspire
github.com
Release v13.5.0 · CommunityToolkit/Aspire
Another massive release from the Aspire Community Toolkit, with this release landing us support for Aspire 13.5. There is a stack of new integrations too: Logto RustFs dbx SeaweedFS Bitwarden Squa...
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Mitch Denny @mitchdenny.dev · 17/08/2026
We are in dogfooding mode over here in @aspire.dev. Found (and fixed) some juicy juicy bugs. Huge payload in this release as usual.
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Mitch Denny @mitchdenny.dev · 17/08/2026
The movie Moon (2009) is a good metaphor for agents running until their context window expires.
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Mitch Denny @mitchdenny.dev · 16/08/2026
Want to see the difference between Australia and the US in one headline... "Australian PM wants a gun crackdown/buyback" Australians:....
static.klipy.com
Kermit The Frog Nodding
ALT: Kermit The Frog Nodding
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Reposted by Mitch Denny
Maxwolf @bigmaxwolf.com · 14/08/2026
OREGON TRAIL A clone of the popular 90's computer game, rebuilt from scratch and playable right in your terminal. It is free, it runs on Windows, Mac, and Linux, and it comes with the original MECC artwork and chiptunes bundled in. C# source is on GitHub. bigmaxwolf.com/oregon-trail...
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Mitch Denny @mitchdenny.dev · 11/08/2026
Make sure you fill out the #census form for your doggos:
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Mitch Denny @mitchdenny.dev · 06/08/2026
Hello @aspire.dev / #aspire friends. Does anyone deploy their apps directly on VMSS clusters these days? I have a proof of concept of `aspire deploy` being able to hoist an app and run it directly on a VMSS cluster but I'm not really sure how common this scenario is these days.
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Mitch Denny @mitchdenny.dev · 05/08/2026
A few folks on the @aspire.dev team have been putting some polish on the Aspire dashboard this iteration and I just played with it in a build from main and its looking really nice. Not one thing in particular but lots of little refinements.
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Mitch Denny @mitchdenny.dev · 31/07/2026
Finally watching the Expanse. In think Draper might my favourite character.
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Mitch Denny @mitchdenny.dev · 31/07/2026
Kinda looks like a crashed Star Destroyer. Same energy.
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Mitch Denny @mitchdenny.dev · 31/07/2026
What is this whole Jimothy thing? Stupid answers only - I want amusement.
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Mitch Denny @mitchdenny.dev · 29/07/2026
If you want your daily dose of stupid just look at the average comment in this YouTube video of Dr Fauci’s congressional testimony. m.youtube.com/watch?v=zicm... For the avoidance of all doubt I believe that vaccines save lives.
m.youtube.com
LIVE: Dr. Anthony Fauci testifies at Senate hearing on COVID-19 (FULL)
YouTube video by Associated Press
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Mitch Denny @mitchdenny.dev · 27/07/2026
RIP Bill Oddie
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Wolfcat 🥄 @wolfcat.bsky.social · 27/07/2026
We cross to the IT department behind #AusAlert
static.klipy.com
Hammaya Relaxed
ALT: Hammaya Relaxed
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Mitch Denny @mitchdenny.dev · 21/07/2026
Must resist urge to rewrite github.com/microsoft/co... as a frontend for #BlueSky
github.com
GitHub - microsoft/comic-chat: Source code for the Microsoft Comic Chat IRC client
Source code for the Microsoft Comic Chat IRC client - microsoft/comic-chat
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Mitch Denny @mitchdenny.dev · 20/07/2026
That's right you little spinners ... spin ... SPIN!
Partial screenshot of GitHub App with pinned jobs running.
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Mitch Denny @mitchdenny.dev · 19/07/2026
I’m looking forward to seeing a telco executive explain to a politician the importance of NTP.
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Mitch Denny @mitchdenny.dev · 19/07/2026
I watched the final episode of season 6 of "For All Mankind" last night. Fantastic stuff. I'm looking forward to season 7. My favorite part of every season is the first episode where they fast forward time.
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Mitch Denny @mitchdenny.dev · 12/07/2026
Been binge watching For All Mankind and every single time Columbia takes off I hold my breath hoping that nothing happens to it in this alternate universe.
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Mitch Denny @mitchdenny.dev · 02/07/2026
Sometimes I wonder about my fellow Australians: www.abc.net.au/news/2026-07...
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Ge/rd/Nie/me/tz @niemetz.it · 29/06/2026
Data center expansion
Disk stapler
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Mitch Denny @mitchdenny.dev · 29/06/2026
There is a flavor of AI-generated YouTube video that keeps showing up on my feed which proclaims how awesome Gen-X is. They are total bullshit. There was one that had completely fabricated research and very flawed reasoning on IQ by generation (spanning about 100 years).
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Mitch Denny @mitchdenny.dev · 28/06/2026
This was a really thought provoking interview on the Diary of a CEO YouTube channel: www.youtube.com/watch?v=32u5...
youtube.com
Billionaire's WARNING: I'm SELLING. The Crash Is Already Here!
YouTube video by The Diary Of A CEO
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Mitch Denny @mitchdenny.dev · 21/06/2026
A fearless, independent ABC that is free for all Australians is worth fighting for. Sign the petition to reject calls to defund the ABC force it onto a subscription model that would price out the Australians who need it most. abcfriends.au/actions/keep...
abcfriends.au
Keep the ABC free for all Australians - ABC Friends
Calls to defund the ABC and force it onto a subscription model would destroy what makes the ABC unique: its obligation to serve every Australian, regardless
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Mitch Denny @mitchdenny.dev · 13/06/2026
Adding some real 3D support to #hex1b tonight. But this also shows off an upcoming feature in Aspire 13.5 ... web-based Terminal support. The demo here is a TUI app built using Hex1b running under #aspire accessible via the dashboard via our new terminal emulation feature.
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Mitch Denny @mitchdenny.dev · 11/06/2026
@orhun.dev @patriksvensson.se I happen to own the tui.social domain (used it for a demo once). Maybe we should try and collaborate on a BlueSky community dedicated to CLI and TUI stacks and terminal emulators. I’m sure there would be others interested too.
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Mitch Denny @mitchdenny.dev · 10/06/2026
Have been working on a fairly large feature in #aspire for an extended period. Lots of new files, lots of iterations. Managed to really hit the limits of feature iteration with Copilot and an Opus model. About 17,000 lines added over 96 commits.
An AI generated image of a anthropomorphized coding agent being in a broken state because its context window was blown.
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Aspire 💫 @aspire.dev · 01/06/2026
Aspire 13.4 has landed 🚀 The TypeScript apphost is officially GA! Plus 500 or so other PRs of goodies 🤌 🔎 Read the blog for the highlights 👉🏻 devblogs.microsoft.com/aspire/whats... 🤯 Check out the What's New for all the deets 👉🏻 aspire.dev/whats-new/as...
devblogs.microsoft.com
Aspire 13.4 is here
Aspire 13.4 is here with TypeScript apphost GA, typed resource commands with results, server-side CLI log and telemetry search, more mature Kubernetes and AKS deployment, and more.
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Mitch Denny @mitchdenny.dev · 30/05/2026
Doing some test deployments via our AKS integration in #aspire 13.4 and just saw this content served up from our starter template app. Whatever place this weather is for I don't want to live there! 51c is rated as "Cool" :P
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Mitch Denny @mitchdenny.dev · 26/05/2026
Seems to be an unpopular opinion but I actually like the look of the new Ferrari EV. I actually like the yellow one.
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Mitch Denny @mitchdenny.dev · 25/05/2026
Building a little demo app on top of #hex1b. It's a process viewer. Includes a little Lisp dialect for filters/automation. asciinema.org/a/mulbkvzb7j...
asciinema.org
untitled
Recorded by midenn
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Mitch Denny @mitchdenny.dev · 25/05/2026
I'm at the _can get splinters from your own stubble_ stage of my life.
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Mitch Denny @mitchdenny.dev · 18/05/2026
If Windows, Linux and macOS could all agree on their keyboard shortcuts for multiple workspace window management - that'd be grant. kthxbye.
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Jen Gentleman @jenmsft.bsky.social · 14/05/2026
A man and a woman talking at a book store. I like good drivers, the man says. Me too, replies the woman. Captioned on the man (someone who has a car), and the woman (someone who works in tech)
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Mitch Denny @mitchdenny.dev · 13/05/2026
Great to see some improvements in this long standing friction point in .NET: devblogs.microsoft.com/dotnet/proce...
devblogs.microsoft.com
Process API Improvements in .NET 11 - .NET Blog
Process API improvements in .NET 11, including high-level APIs for starting processes, capturing output without deadlocks, handle inheritance control, lifetime management features, and a lightweight `...
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Mitch Denny @mitchdenny.dev · 12/05/2026
New AI benchmark announced: Can fold fitted sheets.
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Mitch Denny @mitchdenny.dev · 10/05/2026
Just merged the predictive text input improvements for #hex1b. So now you can do ctx.TextBox(...).Predict(...) and it will provide predictive text in a textbox. Also removed the [ and ] bookends for textboxes and now just use the shaded effect (and auto fill to to the available space). Polishing.
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Mitch Denny @mitchdenny.dev · 10/05/2026
I made some breaking API changes in #hex1b over the weekend in service of getting the API into a more consistent shape. The first change was renaming any extension/instance methods on the _widget_ API surface that starts with "With". The "With" pattern is reserved for the terminal builder.
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Mitch Denny @mitchdenny.dev · 10/05/2026
Had to make some breaking API changes to #hex1b over the weekend as I start polishing the core API patterns and widgets for a future 1.0 release. In terms of widgets I’m also adjusting some of the default styles so that things like buttons aren’t so pox.
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Mitch Denny @mitchdenny.dev · 09/05/2026
Lots of people in the .NET ecosystem use Spectre Console (because it is awesome) and I am sure like others they are watching the development of Spectre TUI with interest. I wondered what would happen if I attached Spectre's IAnsiConsole as a workload to #hex1b. /cc @patriksvensson.se
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Mitch Denny @mitchdenny.dev · 05/05/2026
@davidfowl.com nerd sniped me over the weekend with a bunch of bugs. One was a feature request to support select behavior on arbitrary areas of a #hex1b app. Here is an example of where it ended up:
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Mitch Denny @mitchdenny.dev · 04/05/2026
Thought provoking article by Casey Reeves about accessibility in TUI applications. To put it bluntly - they suck the richer the TUI framework the more likely it is to make peoples screen readers go nuts. xogium.me/the-text-mod... I would love to contribute to solving this problem.
xogium.me
The text mode lie: why modern TUIs are a nightmare for accessibility
The mythical, it's text, so it's accessible There is a persistent misconception among sighted developers: if an application runs in a te...
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Mitch Denny @mitchdenny.dev · 04/05/2026
Also fixed a rendering/flickering issue with mouse/cursor support in #hex1b thanks to a set of bug reports by @davidfowl.com who is using Hex1b on one of his projects. I love bug reports! github.com/mitchdenny/h...
github.com
Issues · mitchdenny/hex1b
The .NET Terminal Application Stack. Contribute to mitchdenny/hex1b development by creating an account on GitHub.
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