As someone who knows how terminals, and indeed terminal emulators, work (having used actual terminals years ago, and having written several terminal emulators) I encourage you not to promote this AI-generated bunk as a source of learning.

It is incorrect on a lot of points, beginning with erroneous descriptions of the colour models and what line discipline modes the Bourne Again and Z shells use.

There are subtle omissions and errors in the "terminal stack" and TUI sections.

The "how they fit together" part is blatantly wrong, and the descriptions of the shells and the terminal emulators are laughable (but also regurgitate some widespread myths, which is likely why the AI slop here has what it has).

This is a sad+bad successor to the years of answers that I and other people gave on StackExchange and the like.

https://mastodon.social/@lobsters/115861488474520435

https://how-terminals-work.vercel.app

The lobste.rs people have already identified the source on Twitter for this AI slop.

#AIslop #terminals #TerminalEmulators

One Open-source Project Daily

A terminal for a more modern age

https://github.com/Eugeny/tabby

#1ospd #opensource #serial #sshclient #telnetclient #terminal #terminalemulators

🎉✨ Oh wow, someone finally decided to cram #Ghostty into #WebAssembly with xterm.js API! Because clearly, what the world needed was yet another way to run terminal emulators in a browser. 🚀🔧 Meanwhile, GitHub's entire menu seems to have been thrown into a blender and splattered all over the page just to remind you that your code can always be more "intelligent." 🙄💻
https://github.com/coder/ghostty-web #xtermjs #terminalemulators #GitHub #redesign #HackerNews #ngated

🚀 Fast forward to 2025, and nerds are still obsessing over terminal emulators like it's the new Pokémon. Jeff Quast, our #Unicode warrior, has now extended his tool to detect magic DEC Private Modes and sixel graphics. 📜 Spoiler: it involves sending visible text and control sequences, because apparently, ASCII art wasn't enough of an art form. 🎨
https://www.jeffquast.com/post/state-of-terminal-emulation-2025/ #terminalemulators #DECgraphics #ASCIIart #techtrends #HackerNews #ngated

State of Terminal Emulators in 2025: The Errant Champions

https://www.jeffquast.com/post/state-of-terminal-emulation-2025/

#HackerNews #State #of #Terminal #Emulators #in #2025 #The #Errant #Champions #terminalemulators #technology #2025 #programming

@pitrh

Exotic Silicon is making the mistake that we all have made, of getting ITU T.416 wrong.

I hope that no-one merges that code, because it would be baking erroneous control sequences into #OpenBSD.

Most of the rest of we terminal emulator authors have been though the process, and by now have switched to the correct control sequence that T.416 actually specifies.

It requires colons for sub-parameters, and there is a colour space sub-parameter.

#ExoticSilicon #TerminalEmulators #T416

Tradeoffs.

Microsoft Terminal does italics, strikethrough, and invisible properly, but it does underlining at the glyph baseline, making some characters difficult to read.

MobaXTerm's built-in PuTTY places underlining properly *under* the glyphs, but does not handle italics, strikethrough, and invisible at all.

#MicrosoftTerminal #TerminalEmulators #putty #MobaXTerm

Why DEC modifiers less 1? Because adding 1 was a bodge for the days when missing parameters defaulted to 1. Default to 0 has been in ECMA-48 since the 1990s.

Why keyboard⇒DEC-like? Because the keyboard page is where the old non-DEC terminal keys like ExSel, Oper and Again live, and this can easily encompass those in sort-of-DEC-VT manner.

Why consumer⇒SCO-like? Because SCO's extensions tend to deal in PC-like stuff that isn't like old terminals, like AL/AC keys.

#TerminalEmulators #ECMA48

Here's what I invented:

It's the #ECMA48 FNK control sequence with leading parameter characters for private extensions:

USB keyboard page keys have a leading '?' (modelled after DEC extensions).

USB consumer page keys have a leading '=' (modelled after SCO extensions).

Key numbers are the USB usage codes in those pages. Modifiers are encoded as a sub-parameter, DEC values minus 1, allowing multiple keys per control sequence. Sub-parameters default to 0.

#nosh #uservt #TerminalEmulators

@jperkin @darrenmoffat

Reverse video is tricky to get exactly right; although the extreme edge cases are fairly rare terminal emulators.

I'm not sure how one could break it once one has got it right, though.

I wonder what has gone on there.

#screen #TerminalEmulators

@cazabon

Amusingly, it wouldn't be able to do anything at the end of such a countdown. All of the parts of the system apart from the login processes run unprivileged.

#nosh #uservt #TerminalEmulators

There are a good 80 potential Application Command/Launcher keys in the USB HID doco. Plus USB has enormous scope for future expansion, here.

Reasonably, these can only fit as either FNK or DECFNK.

FNK is tempting, because it's both ECMA-48:1991 standard and no-one has ever used it. But it uses SPC as an ECMA-35 intermediate character, and I suspect that that will give bad TUI input parsers the willies. Time for some experiments.

#nosh #uservt #TerminalEmulators

It's 2025. It should not be the case that I'm the first author of a terminal emulator to wonder what control sequences the "multimedia"/"office" keys on my Windows keyboard should send.

But I have just looked around at TeraTerm, XTerm, and several others; and there's nothing. Apparently it doesn't help the GUI emulator writers that "multimedia"/"office" keys are not really a thing when it comes to #X11.

It seems that I have to pioneer something.

#nosh #uservt #TerminalEmulators

What terminal are they using for some of these screenshots over at Telnet BBS Guide? (BBS as rendered with MuffinTerm inset for comparison.)

#BBS #BBSing #telnet #TelnetBBSGuide #ANSI #terminal #terminalemulators #Rustbelt #screenshot #MuffinTerm #vintagecomputing #retrocomputing

I tried Ghostty, font rendering is pretty bad with the fonts that I want to use. I switched back to Alacritty within the hour.

🤷🏼

#Linux #TerminalEmulators

Ghostty – The Fast GPU-Accelerated Terminal Emulator for Linux and macOS

https://squeet.me/display/962c3e10-941cc0cf-bbf2cdb7bab57d15

Ghostty – The Fast GPU-Accelerated Terminal Emulator for Linux and macOS

Ghostty is an open source and cross-platform terminal emulator created by Mitchell Hashimoto, the co-founder of HashiCorp.

Hashimoto’s goal with Ghostty was clear: to build a terminal emulator that is fast, feature-rich, and provides a platform-n ...continues

See https://gadgeteer.co.za/ghostty-the-fast-gpu-accelerated-terminal-emulator-for-linux-and-macos/

#opensource #technology #terminalemulators

@WiteWulf

There are actually two quite different terminal emulators named KiTTY, which does not help matters.

https://www.9bis.net/kitty/

https://sw.kovidgoyal.net/kitty/

#TerminalEmulators

@bean @chrisvest

Mishandling is a problem to this day. Many people know of ECMA-48. Fewer have read and fully understood ECMA-35, which explains the extensible and general structure of escape and control sequences.

#terminfo #TerminalEmulators

Was looking at #Vim keybinding documentation and learned of https://sw.kovidgoyal.net/kitty/keyboard-protocol/

#keyboards #terminalEmulators