Kerran MacDonald

Building AI + VR products that keep workers alive. Founder GeneXR and Waggingtail. Ship fast, learn faster. Claude Code for everything. Auckland, NZ.

[Kerran MacDonald @kerranm]

@chris__sev What are your initial thoughts man?

[Kerran MacDonald @kerranm]

Genuine question for the marketers out there.

I last ran a newsletter 15 years ago. Now I'm sending them to subscribers again.

What are you actually using in 2026? Is ActiveCampaign still a top pick?

[Kerran MacDonald @kerranm]

@chris__sev @claudeai I just saw this for the first time today! And I have 2 days left hahahaha

[Kerran MacDonald @kerranm]

I feel the need.... the need for speed @claudeai

[Kerran MacDonald @kerranm]

So weird. Today. I've tried my best to max my out my Claude limits and I can't even get close!

What's happening @claudeai ?

Peak/off-peak ?

Or just buggy limits?

[Kerran MacDonald @kerranm]

Which model has the best vision in the terminal? I'm in the middle of an iterative process giving Claude feedback on a PDF design and it's tough man

[Kerran MacDonald @kerranm]

Serious question. For those using CC and Codex together, do you use Codex or CC to plan VS implement?

I've been running both. Current setup:

CC for planning. Codex for implementation.

But given how fast Codex is looking, i've been flip-flopping between the two.

What's your workflow?

[Kerran MacDonald @kerranm]

I thought Codex was fast. Then I found the "Jesus take the wheel" command.

2x token burn. Ouch, but still!

The CLI still isn't @claudeai . But it'll get there, right?

What are you missing from Codex after the switch?

[Kerran MacDonald @kerranm]

First time hitting my @claudeai max plan limit, so I gave Codex a spin. I'm still a Claude guy. But I'd be lying if I said I wasn't impressed - its fasssssst!

What do you reckon?

[Kerran MacDonald @kerranm]

@Al_Grigor It hurts huh? Hit mine for the first time yesterday.

[Kerran MacDonald @kerranm]

@kumala3s @claudeai Will play around with the larger context window today for codex. I gotta say, I don't really push the Claude context past 200k even with the 1M window

[Kerran MacDonald @kerranm]

First time hitting my @claudeai max plan limit, so I gave Codex a spin. I'm still a Claude guy. But I'd be lying if I said I wasn't impressed - its fasssssst!

What do you reckon?

[Kerran MacDonald @kerranm]

@kumala3s @claudeai Are you using the 1m context window?.

[Claude @claudeai]

Computer use is now in Claude Code.

Claude can open your apps, click through your UI, and test what it built, right from the CLI.

Now in research preview on Pro and Max plans.

[Kerran MacDonald @kerranm]

@KaiXCreator The only startups that can't be copied are the ones where every user makes the product harder to leave — through proprietary data, deep workflow integration, or context that resets to zero if you switch.

[Kerran MacDonald @kerranm]

Vibe coding with multiple agents & terminals is insanely fast, but my eyes are wrecked and I'm exhausted from constant monitoring context-switching.

My top 3 coping strategies: Walk/move while agents run (natural distance breaks + recovery)
20-20-20 rule + conscious blinking (relaxes eye muscles, counters low blink rate)
Morning planning + afternoon batch reviews (limits multitasking overload)

These keep the speed without the burnout -just. Anyone else? #VibeCoding #AICoding

[Kerran MacDonald @kerranm]

Anyone else get completely lost in their niri workspaces? I kept trying other compositors but niri is just too good. So I built a simple workspace labeller — two keybinds to name and remove. Now I always know where I am.

yay -S niri-ws-label

[Kerran MacDonald @kerranm]

@chris__sev Hey bro, it's been many years.

I've recently starting building out software to replace all the saas subscriptions in my business... I got rid of pipedrive just recently, xero next.

But while I have 5/6 products mentioned in your list, I'll sign up! Ha!

[Kerran MacDonald @kerranm]

Am i shadow #banned ?

[Kerran MacDonald @kerranm]

How is everyone finding the 1m context with @claudeai ? Any learnings? Run to 10-15% and clear context or is it able to push a little further?

[Kerran MacDonald @kerranm]

Shoutout to @syntaxfm for putting @Tailscale on my radar — it's completely eliminated the networking headaches I was dealing with FOR FKN YEARS. If you haven't tried it yet, do yourself a favor and check it out.