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Richard Feldman Profile
Richard Feldman

@rtfeldman

Followers
16K
Following
33K
Media
75
Statuses
2K

Let’s go with the ambitious approach.

Philadelphia, PA
Joined September 2008
Don't wanna be here? Send us removal request.
@rtfeldman
Richard Feldman
1 year
If you're curious about what it feels like to use @roc_lang or @zeddotdev, have I got a video for you!. This is me live-coding a Roc CLI and web server in Zed, explaining as I go:. Thanks to Func Prog Sweden for hosting the event and editing the video!.
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@rtfeldman
Richard Feldman
4 hours
RT @roc_lang: Massive thanks to our new corporate sponsor, @class_lambda! 🎉. We really appreciate the support. 💜.
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@rtfeldman
Richard Feldman
10 hours
See also: programmers claiming 10x or even 100x productivity when their observed output is not even in the ballpark of 10x. (That said, I've also seen programmers whose observed output is dramatically higher since they started using AI agents. And not because quality tanked.).
@METR_Evals
METR
14 hours
At the beginning of the study, developers forecasted that they would get sped up by 24%. After actually doing the work, they estimated that they had been sped up by 20%. But it turned out that they were actually slowed down by 19%.
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@rtfeldman
Richard Feldman
14 hours
The details on this 😂.
@zeddotdev
Zed
17 hours
Windows when, you ask? Windows real soon. In the meantime:
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@rtfeldman
Richard Feldman
1 day
RT @zeddotdev: 🚀 Zed v0.194 is out!. Today's release packs a doozy with many quality-of-life improvements. When you perform a buffer or pr….
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@rtfeldman
Richard Feldman
2 days
RT @conradirwin: Finally added `U` to Zed's vim mode; Closing in on being able to complete vimtutor. Only a few things left:. * `%` matchin….
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@rtfeldman
Richard Feldman
3 days
RT @sw_unscripted: Episode 108: Broken AI Discourse with Steve Klabnik! 🎉
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@rtfeldman
Richard Feldman
5 days
RT @roguesherlock: @rtfeldman I’ve been using zed for a while now and I actually really like it. I used to daily neovim so a good vim mode….
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@rtfeldman
Richard Feldman
6 days
Yep! Zed has (imo much better) vim bindings out the box, no need for an extension. Also it will convert a bunch of vs code settings and keymap bindings over for you (not all of them, of course, but a lot!).
@TAbrodi
Tiger Abrodi
6 days
@rtfeldman @zeddotdev Nice. I wanna give this a shot. I got a settings.json and keyboard.json + I'm using the vim bindings extensions, is it quick to port those things over?.
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@rtfeldman
Richard Feldman
6 days
RT @the_best_codes: @rtfeldman @zeddotdev I love Zed 🥰.
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@rtfeldman
Richard Feldman
6 days
I'm obviously extremely biased, but I prefer @zeddotdev anyway (and it still has the same pricing as always).
@umbrella_uni
Umbrella
7 days
Why is no one talking about how @cursor_ai rug pulled and changed pricing without notifs?. Cursor was unlimited before now they want to charge you for each use of models. $100 billed today alone for use of sonnet 4 which was always unlimited. What is best AI IDE alternate?
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@rtfeldman
Richard Feldman
7 days
RT @croloris: Zig Roadmap 2026.
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@rtfeldman
Richard Feldman
7 days
RT @rwx_cloud: A Node.js maintainer lost the keys used to sign a publicly available release. This is one of those situations that leads to….
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@rtfeldman
Richard Feldman
8 days
RT @mitchellh: This is required material for any software engineer to understand CPU performance optimization. Yes, it's about Instruments,….
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@rtfeldman
Richard Feldman
8 days
Indeed! It's this one:
@wollantine
Wollantine
8 days
There's a new course on FrontendMasters by @rtfeldman on how to implement a Hindley-Milner compiler!.
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@rtfeldman
Richard Feldman
8 days
RT @wollantine: There's a new course on FrontendMasters by @rtfeldman on how to implement a Hindley-Milner compiler!.
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@rtfeldman
Richard Feldman
8 days
RT @ProgramWithAi: are there weak and stiff frameworks out there? or are they are all powerful and flexible?.
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@rtfeldman
Richard Feldman
10 days
RT @zeddotdev: Starting in 1 hour: @a7fort on his AI infrastructure journey - what went wrong, lessons learned, and whether Claude Opus 4 c….
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@rtfeldman
Richard Feldman
12 days
RT @djm_: @louispilfold @rtfeldman @changelog It's definitely true for me personally, a side project having to use a new language no longer….
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@rtfeldman
Richard Feldman
14 days
RT @zeddotdev: Zed Decoded is back! In this episode @aguzubiaga, @as__cii, and @rtfeldman dive into how we built the Agent Panel. Join us i….
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@rtfeldman
Richard Feldman
14 days
RT @josevalim: Wholeheartedly agree. Many people describe coding agents as "magic", which leads people to expect it to "just work" while in….
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