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Chris Castle

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Maybe American Airlines Shouldn't Use JavaScript to Construct Email Subjects

Reminds me of this iconic CodeMash 2012 lightning talk by Gary Bernhardt . Start at minute 3. Or just watch the whole thing. It’s hilarious. NaNNaNNaNNaNNaNNaNNaNNaNNaNNaNNaNNaNNaNNaNNaNNaN Batman!

Bypass Phone Hotspot Speed Restrictions by Changing MacOS IP TTLs

Many mobile phone service providers reduce internet connection speed when you’re using your phone as a hotspot. They do this (naively) by looking at the TTL value in the IP packets. The TTL value of a packet (on MacOS) defaults to 64 and is decremented at each network hop. If the mobile phone operator receives an IP packet with a TTL of 64, they assume it’s from you using your phone…

Reauthenticate Tailscale Without Dropping Current SSH Session

I have some of the machines on my tailnet configured to require reauthentication every 90 days. I like machines that I don’t have physical control over to not be permanently authenticated to the tailnet. The problem is that when their 90 day key expires, I can’t access them. Fortunately, Tailscale added a “temporarily extend key” to their web console. This gives you 30…

Unrecognisable Casualties of the Growth Cult

When I recently logged into my Mailchimp account, I quickly got frustrated trying to navigate my way around all the things I didn’t want to do. Even more off-putting than dealing with the usability challenges of feature bloat are the constant little hints that I’m not doing enough . Mailchimp keeps telling me to “ boost sales with shoppable landing pages and social media ads”. With every update,…

Build Software That Reflects the Humanness of its Creators

The only problem with Microsoft is they just have no taste. They have absolutely no taste, and I don’t mean that in a small way, I mean that in a big way, in the sense that they don’t think of original ideas, and they don’t bring much culture into their product. —Steve Jobs, 1995 (found recently in Sari Azout ’s Check your Pulse newsletter #47 ) Now, I don’t know if this is still true…

Hey, the App Store, and Karl Marx

The Hey vs. App Store dispute is a manifestation of Karl Marx’s ideas about the struggle between capital and labor, updated to a 21st century world in which a platform, rather than a factory owner, controls the means of production and distribution. — @lijin18 The Hey vs. App Store dispute is a manifestation of Karl Marx’s ideas about the struggle between capital and labor, updated to a 21st…

Helium and LoRaWAN

A kind of random purchase I made a few months ago just arrived. It’s a Helium Hotspot that connects IoT devices to the internet. It’s used by (among others) Lime bikes and scooters that are popping up in various cities around the world. Helium has created something called LongFi, which I think is just LoRaWAN with metering layered on and maybe some cleaner device fleet management…

Dispatches from Elsewhere on AMC

1/ Beautiful, unique, sad, kind, real, raw, whimsical, touching, uncomfortable, human, weird, reflective, hopeful. These are words to describe #DispatchesFromElsewhere on @AMC_TV . The last few episodes are tear-jerking. But not in an upsetting way. — Chris Castle (@crc) May 27, 2020 2/ It was what I needed (maybe what you need?) right now in these weird times. I encourage you to check it…

I just wanted a simple way to code with someone remotely and interact with them like a human

Recently I’ve been interviewing for Developer Relations roles. As a technical role, part of the interview process includes evaluation of my technical abilities. Or to put it more simply, writing code while a stranger peers over my shoulder. That normally happens one of two ways. If it’s an in-person interview, I’m writing code on a whiteboard. If it’s over the phone, I’m writing code in a shared…

Highlighting the Internet (part 2)

Two weeks ago I built the first part of a project to help me more actively read, recall what I read, and keep track of all the delightful bits of prose I come upon. This week I finished up the project by 1) figuring out how to save highlighted text from any possible web page, and 2) building a way to nicely display all those interesting bits of text on a web page . Also I created a GitHub…

Highlighting the Internet

I spend a large chunk of my day reading – learning about the world, the people in it, and the ways in which we interact. So many people, events, and discoveries only 15 years ago were hidden (from me) because they weren’t easy to broadly, publicly share. The internet and its news.google.com and Twitter and Hacker News and Medium and Amazon and a multitude of other sites and…

Solo International Travel

In the winter of 2014/15, I took off from the USA for four months to do some dirt biking in Africa, dog sledding in Sweden, and general exploring around the world! I hadn’t traveled much internationally prior to this. I did a semester abroad in Ireland, but that didn’t really seem like long-term, solo, international travel – probably because the school program had everything so tightly organized…