John Gallagher

Helping Rails Engineers Fix Bugs 20x Faster. Founder of #kill3pill

[John Gallagher @synapticmishap]

@visualitypl @2NIT7 @railsware @KOLEOpl I'm so looking forwards to this! Super cool!

[John Gallagher @synapticmishap]

@visualitypl @2NIT7 @railsware @KOLEOpl I'm beyond excited to be help others learn what I've had to figure out myself!

Any questions anyone wants me to cover?

[John Gallagher @synapticmishap]

Want to build landing pages in the command line whilst keeping marketing happy?

https://t.co/qyfmisSKMX

[John Gallagher @synapticmishap]

@PierreDeWulf Ha! Brilliant. I'm building a product to keep an eye on cloud costs - https://t.co/pEFis5rGb9 - let me know if this sounds interesting.

https://t.co/eKMsFmWxDb

[Pierre de Wulf @PierreDeWulf]

Her: take me to somewhere expensive

Me:

[John Gallagher @synapticmishap]

Cloud costs are getting out of control. Most leaders I talk to have seen the unexpected invoice at the end of the month.

I'm building an app to allow your team to track costs on infrastructure.

Check it out: https://t.co/x0xxJa6KIU

[John Gallagher @synapticmishap]

Loving the presentation from @euruko by Victor with things he's learned after 25 years. Loving the "birds aren't real" reference!

[John Gallagher @synapticmishap]

@euruko 2024 has started - @fxn is talking about Zeitwerk autoloading - "If you find a bug you jump on it like a lion" - great advice for every engineer including myself.

[Euruko @euruko]

🚀 It’s Day 1 of #EuRuKo2024!

Three days of inspiring talks, workshops, and connecting with the Ruby community are officially underway here in Sarajevo. Let’s make this an event to remember!

#Ruby #TechConference #TechTalk

[John Gallagher @synapticmishap]

At #EuRuKo2024 - super cool conference! I'm here and wearing a red T Shirt with "Fix Bugs 20x Faster" on it. Come and say hi and ask me what goat I have!

[John Gallagher @synapticmishap]

9:18am - "Test suite is really slow, wonder why."

9:58am - "CI tool only gives basic metrics. Sigh."

10:12am - "Let's add structured logging."

2:49pm - "First test run! Let's see..."

2:52pm - "73% of the time is from 18% of the tests... WTF?!"

[Visuality @visualitypl]

Ruby Warsaw Community Conference is over. Thank you to all the speakers, sponsors, and everyone involved in this event. It was a good day.👌
See you in February for the next edition!💪
#rubyonrails #conference

[John Gallagher @synapticmishap]

@visualitypl @mlecicki @ppwitek @Prowly_com @railsware @AppSignal @honeybadgerapp @cybergizer @KOLEOpl @softswiss This was a fantastic event! I can't wait until February 2025...!

[John Gallagher @synapticmishap]

@viktorianer4 You absolutely SMASHED it! Fantastic talk. I was incredibly distracted but even in my distracted state it seems like you did a great job! Thank you!

[John Gallagher @synapticmishap]

@yarotheslav @wizzair @visualitypl We missed you! This is terrible. I'm so sorry. I flew with wizz air and feel very grateful I got here.

[John Gallagher @synapticmishap]

Just listening to @noahkagan 's amazing Million Dollar Weekend. I've just asked for 10% off on my evening meal... in a random hotel in Warsaw... feeling very foolish... and get rejected. YASSS. I'm not new to rejection challenges but this is awesome.

[Heinrich Hartmann @heinrichhartman]

This little calculator app allows you to explore the effect of sampling to the accuracy of:

1. Request Rates
2. Error Rates
3. Latency Percentiles

You may want to use this, if you are sampling your tracing data. @LightstepHQ @ZalandoTech

https://t.co/hAGwJ4v7Zd

[John Gallagher @synapticmishap]

@wizzair I can't log into the app because I don't have a registration. When I try to register it says it's sent a confirmation email but I get nothing in my emails. I've checked spam. Tried with four email addresses and nothing. Desperately need to book today!

[John Gallagher @synapticmishap]

Using this approach at BiggerPockets we went from an impenetrable black box to understanding how our app was actually being used.

The goal?

To make software engineering *joyful*.

✍️ DM me MORE
♻️ Repost if you think this is useful

[John Gallagher @synapticmishap]

Ever been overwhelmed by observability?

"I don't know where to start!"

Here's how I've successfully instrumented real apps, step by step.

[John Gallagher @synapticmishap]

✅ 5. Improve

Maybe the data didn't show up.

Maybe the data did show, but you now realise you'd made a mistake.

Maybe you got your question answered and now you have another question.

Or improve the instrumentation.

Or choose a new question!