Jamie + Lion

Autistic Accessibility specialist, developer, adaptive mountain biker, speaker & kit car builder. Never far from my plush sidekick Lion :)

[Jamie + Lion @JamieKnight]

For those looking for more autism related stuff I tweet about autistic daily life over at @spacedoutsmiles :)

[Jamie + Lion @JamieKnight]

@FunkaFoundation Hi, I've been trying to join this session with the link provided in the email... but it keeps telling me that "the host has another meeting in progress".

Is there somewhere I can get hold of the correct link?

[Jamie + Lion @JamieKnight]

@XReyRobert @CuriousGuy07 @simonw I don’t think Apple will be using consumer M4s in the data centre.

They have an exceptionally talented silicon team and direct access to leading end TSMC process nodes. I suspect they have built themselves something bespoke.

Hopefully we get a behind the scenes look :)

[Jamie + Lion @JamieKnight]

@tvaziri The more I’ve been learning to fly the harder it hits me.

The professional ATC terminology giving way to emotion, followed by the last minute realisation there was nothing to do but leap for the kids!

It breaks me every time.

[Jamie + Lion @JamieKnight]

@rem When I first swapped to M1 I was running all my x86 builds using virtual box.

Docker can also run builds for x86 on M1 using buildx command, then run the containers locally. It’s slow but it works pretty well.

[Jamie + Lion @JamieKnight]

Love that SQLite is getting attention.

We’re probably approaching about a billion read & writes through the various SQLite databases we use in @ERMILTD since we started.

It’s bloody quick for calculating stats too :)

[Aaron Francis @aarondfrancis]

SQLite can only hold up to 281 terabytes of data.

If I'm going to potentially support many tens of users, I need something that can scale!

[Jamie + Lion @JamieKnight]

@simonhamp It’s kinda the nature of node projects. They need a lot of looking after to keep them sweet and up to date.

A lot of orgs don’t factor in long term maintenance costs when they take on more and more code :(

[Jamie + Lion @JamieKnight]

Not checked this account for ages as I do most of my twitter stuff on @spacedoutsmiles these days.

It’s good to see stuff folks are working on. Lots of extremely funky things!

[Jamie + Lion @JamieKnight]

@HarshVrdn03 You could in theory load the formulas from the spreadsheet and attempt to convert them so node can run them by substituting values etc. It would be a bit of a bodge + very brittle.

Doing the 40 formulas in node is probably easier in the long run.

[Jamie + Lion @JamieKnight]

@HarshVrdn03 Why do the calculation in excel rather than just having node do the sums?

The node excel library’s are for reading and writing the format. They don’t include the excel engine to open the file and execute the calculations.

[Jamie + Lion @JamieKnight]

AWS servers can be surprisingly slow compared to Macs.

On a per core bases even an M1 CPU is around 2x the speed of a Graviton 3 CPU used in the c7g AWS instances.

We work around it by scaling out not up, but it’s far from ideal. At least they are super cheap :)

[Jamie + Lion @JamieKnight]

It’s been really fun watching this grow. @micmath and the rest of the team have done an amazing job with it :)

[Branimir @besigndesign]

We've stumbled upon a great source of accessibility guides from experts with years of experience.

Currently testing it out. They have guides for principles, components, and patterns, which are very useful for our design system work.

Check it out at:
🔗 https://t.co/TFB5U4SgQ0

[Jamie + Lion @JamieKnight]

@KatieLangerman It might be a bit low level, but I approached this by storing a UTC date in ISO format, and then using the date functions of the database to do the week logic in queries

On the front end I’ve been using momentJS, I take a date, call “startOf(‘week’)” then format as week number.

[Jamie + Lion @JamieKnight]

I got burned by data migrations in the past, so for @ERMILTD we treat our backend database as ephemeral, it’s a fast and easy to query index of data held in S3.

Rather than migrate data, we regenerate the database from S3 files when needed.

Works well for our use case :)

[Gwen (Chen) Shapira @gwenshap]

I assume y'all use migration scripts / containers to apply schema changes to your DB.

But how do you create and run them? Homegrown tools or OSS? Same tool to create and run, or separate?

[Jamie + Lion @JamieKnight]

Really impressed with AWS ECR support in Serverless.

A few days of playing & I have a single command which can…

- Build + upload a complex container
- Deploy it to Lambda & AWS Batch environments
- Setup input & output buckets
- Deploy an admin api to manage it all

Magic :)

[Jamie + Lion @JamieKnight]

Does anyone know of a really good training for creating AWS diagrams?

I’m creating diagrams for a bunch of @ERMILTD stuff and they keep ending up a bit of a mess.

It’s a bunch of simple things… interconnected via events & common resources like S3..

Quickly gets messy!

[Jamie + Lion @JamieKnight]

After evaluating a heap of approaches we’ve decided go to go with an AWS sandbox account for each dev on the team.

To make that work, we need to fully automate some of the older bits of our setup which where hand setup ~5 years ago :)

It’s been fun to get going :)

[Jamie + Lion @JamieKnight]

Doing a bunch of nerdy work to simplify the deployment process for @ERMILTD.

It’s very satisfying to run a single command on an empty AWS account… and have a working install of ERMI running a few minutes later.

About 70% there for a few hours work :)

[Jamie + Lion @JamieKnight]

Doing a bunch of nerdy work to simplify the deployment process for @ERMILTD.

It’s very satisfying to run a single command on an empty AWS account… and have a working install of ERMI running a few minutes later.

About 70% there for a few hours work :)

[Jamie + Lion @JamieKnight]

This was really fun to write. Fab to see an event getting lots of the small details right :)

[Jamie + Lion @spacedoutsmiles]

Woo! I’m back to blogging and this post is a big one!

Many inclusive events tend to annoy me as they sort of miss the point.

Then I came across The Story Museums approach & I was heckling impressed… they get so much right I just hard to write about it

https://t.co/V3ME9wtGDG

[Jamie + Lion @JamieKnight]

@DRGtelevision Really cool. Was a pleasure to spend time with ya at the weekend :)

Does the company have a twitter account?