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Paul Johnston
@PaulDJohnston
, 10 tweets, 4 min read Read on Twitter
Love it #QConLondon
I like @robynbergeron - she has opinions
Some of this talk is worthwhile... but some of it isn't right... use what is right for you (I think that's what she said)... @robynbergeron

I'm loving this talk. Really fun
Interesting. Open Source shouldn't be a purist conversation. #qconlondon
Apply rules equally to everyone #nailedit #QConLondon
"you could get eaten by a raptor" @robynbergeron #qconlondon
Monolithic open source projects are less likely to get contributors because everyone has to know everything...

... modular-plugin style projects allow people to be experts in small elements -> greater participation without having to know everything

@robynbergeron #QConLondon
"Sometimes there are business decisions..." @robynbergeron

Yup! Even for open source companies

#QConLondon
Me: Doing open source software projects sounds really really hard if I'm honest. It's much easier in my mind to *not* do this if this is the thinking that has to go into it. If it's a strategic decision then great, but not just a general "every time" one. *personal opinion*
Interesting...
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Paul Johnston
@PaulDJohnston
Onto @kings13y at #QConLondon talking about Effective Ethics for Busy People
Now talking about GTC @goodtechconf which was awesome last year #QConLondon
Tech sector and the "third sector" (charity sector) are both massive worlds, but don't necessarily converge very often < @kings13y

This is so so true #QConLondon
Read 19 tweets
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Paul Johnston
@PaulDJohnston
Average reading age in UK is between 5 and 7 yrs...

So understanding "1 tablet, 4 times a day" is actually relatively complex for many...

Building tech is hard!

#QConLondon
See
Read 5 tweets
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Paul Johnston
@PaulDJohnston
YAY! A #ClimateChange question at #qconlondon at a non-climate change talk - the question is at a performance talk.

Using a profiler - that's a good point! Low hanging fruit.

"I work for ARM so I think we have it solved already" - Brilliant!
Profile profile profile is everything - It's about efficiency

Data Centres have gone beyond Aviation in carbon emissions... so we have to do something

#ClimateChange #qconlondon
Good follow up - not just efficiency in code... what else? #qconlondon #ClimateChange
Read 7 tweets

Related threads

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Liz Fong-Jones (方禮真)
@lizthegrey
Over to the streaming/kafka track for a topic I'm very interested in: how other teams run streaming logging/events services on Kafka, by @drkrab #qconlondon
@drkrab [ed: it's going to be interesting to find out whether this is describing their inner design and challenges/pitfalls, or whether it's about their log aggregation product.]

They think that people should log *everything* without sampling. [ed: and I agree, for 24h] #QConLondon
In an error situation, you want to be able to find things instead of having regrets that you didn't index.

[ed: this conflates logging to local disk vs centrally *indexing* it. Honeycomb won't be a full logging product, but it does point to where debug logs live...] #QConLondon
Read 37 tweets
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Liz Fong-Jones (方禮真)
@lizthegrey
Over to the chaos track for the afternoon! @NickyWrightson will be speaking on how to prepare as an engineer so you can get a good night's sleep. #QConLondon
@NickyWrightson It's a sign of decent diversity among speakers/organizers when a woman named Nicki introduces a woman named Nicky. Or when there are two Liz's scheduled for the same talk slot, as happened yesterday. #QConLondon
If you're terrible at out of hours support, like @NickyWrightson is, then you need to figure out a way to not get paged.

She got paged while she was dreaming, acknowledged the page, and didn't wake up! She instead thought she was James Bond and getting a mission! #QConLondon
Read 34 tweets
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Liz Fong-Jones (方禮真)
@lizthegrey
Next ethics track talk is @IndraJoshi10 on AI/ML/Big Data ethics. She's the clinical health lead for digital health at NHS England! #qconlondon
@IndraJoshi10 What does being the "clinical lead for AI" mean?

She's an A&E doctor in London. She had medical ethics classes in school but none of the students saw the need and skipped the classes...

but when the complaints come in to triage... maybe you should have listened #qconlondon
There's loads of software being written to address applying data using AI. "We can definitely get rid of doctors in 10 years..." is not a good VC pitch to make.

The government wants to set up skills development, but also rules around AI and ethics. #qconlondon
Read 21 tweets
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Liz Fong-Jones (方禮真)
@lizthegrey
Starting off this morning livetweeting the first two talks of the ethics track at #QConLondon starting with @CatherineFlick who co-wrote the @TheOfficialACM ethics code.
@CatherineFlick @TheOfficialACM From the intro: "The ACM code of ethics reinforced that ethics is the foundation of professional behavior for software engineers, fighting perceptions that bringing your opinions to work is unprofessional." #QConLondon
.@CatherineFlick is a reader in computing ethics. She's part of the committee on professional ethics of the ACM, and researches responsible ethics and innovation.

Ethics has come into the mainstream discussion rather than being a niche topic. #QConLondon
Read 40 tweets
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Liz Fong-Jones (方禮真) 🎙️ #QConLondon
@lizthegrey
.@andrea_kock on risk and psych safety at #QConLondon coming up next [ed: behind a little bit, just walked in]
@andrea_kock Risk is contextual. What's risky in one situation isn't necessarily another. Risk is essential to innovation; but people need psychological safety to take risks. [ed: I'm writing an article for @Medium on misconceptions of psych safety soon so this is topical!] #QConLondon
Using the parable of Icarus: risk is a product of existing environmental hazards, prolonged exposure to those hazards, and the vulnerabilities that people's brains will ignore the first two despite the rational assessment. #QConLondon
Read 28 tweets
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Liz Fong-Jones (方禮真) 🎙️ #QConLondon
@lizthegrey
And now, @sarahjwells at #qconlondon on how to operate mature microservices!
@sarahjwells They've been operating microservices for many years. But sometimes the complexity leads to debugging challenges.

They had a bug in their 'streams' service that was 404ing content, but nobody remembered where the service lived, how to back up, etc. #qconlondon
It eventually got fixed, but only after 20 minutes of indecision and timidity.

"Does the monitoring tell you there's a problem [yes], and does the documentation give you what you need? [no! :(]" -- @sarahjwells #qconlondon
Read 40 tweets

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