Andy Davies @andydavies.me Web Performance Consultant @speedcurve.com (acquired by @embrace.io)
Vegetable grower… Eurorack synth dabbler… Bristol Bears Women’s fan
https://andydavies.me
CityEd @cityedyt.bsky.social I make videos about Cities, Architecture, Urbanism and Placemaking - and anything else to do with cities and the built environment!
My YouTube channel: https://www.youtube.com/@CityEd.
Sara Soueidan @sarasoueidan.com 🇱🇧 Frontend web / UI engineer, speaker, author, and educator specializing in web accessibility • Creator of the Practical Accessibility course https://practical-accessibility.today
🕸️ https://sarasoueidan.com
📤 https://www.sarasoueidan.com/newsletter
devolute @devolute.bsky.social My name is Ian Parr, I am a web developer & UX designer. I have adopted a cat (prev. pony, owl). Co-org #FrontEndSheff / #frontendnorth
Also on mastodon.social/@devolute (yay) & twitter.com/devolute (lol)
Luke Kanies @luke.kanies.com Founder of Puppet. I helped create DevOps. Writing at https://lukekanies.com/.
Seamus @seamusmacsuibhne.bsky.social “I don't do it so they turn round and go 'Thank you Seamusfor the opportunity, thank you for the laughs.' I do it so, one day, someone will go 'There goes Seamus MacSuibhne. I must remember to thank him.’
John Russell @johnrussell40.bsky.social A Yorkshireman in Devon, growing trees. Retired filmmaker. Prioritising climate change, energy, sustainability, woodland, eco-building. Born at 311 ppm CO₂. Just moved to a '70s house and bringing its energy efficiency up-to-date—a big job ahead!
Kelsey Hightower @kelseyhightower.com Minimalist
Luke Sheldrick // @an0key @sheldrick.co.uk Available elsewhere https://an0key.uk
Sheffield Green Party @sheffgreenparty.bsky.social Building a fairer, greener, brighter Sheffield
#MakeHopeNormalAgain
Join us: https://sheffieldgreenparty.org.uk
Quick links: https://linktr.ee/sheffieldgreenparty
Promoted by E Ward, 73 Eskdale Rd, Sheffield, S6 1SL on behalf of Sheffield Green Party
Chris Baraniuk @chrisbaraniuk.com Freelance science & technology journalist. 12+ years experience. Irish/Polish. Writes for the BBC, Wired, The Guardian and others!
Portfolio: chrisbaraniuk.com
Newsletter: thereengineer.pro
Coaching: chrisbaraniuk.com/coaching
HQ: Belfast, N. Ireland
Kaspars Dambis @kaspars.damb.is Full stack maker of things with passion for #web, #electronics, #sustainable living, #buildingscience, #passivehouse, #personalfinance and teaching. Find me at https://kaspars.net and https://wpelevator.com
Craig Grävling @ieatpie.bsky.social Dreaming of a better world through common sense human focussed design (which often means trains).
Wasting time with SAFC, video games, and history.
🇬🇧🇨🇭🇸🇪🇯🇵🇳🇱🇮🇪
Annie Leymarie @annieleymarie.bsky.social Nature / Climate / More-than-humans / Degrowth / Social justice / Food, Farming and Land Use / Energy / Retrofits / Transport... with typos
London
Lewis Standing @lewis-standing.bsky.social North East, Whitley Bay EV society, running, dad, sustainability, doctor
Whitley Bay EV society
https://www.facebook.com/groups/1596692434235953/?ref=share
Octopus referral code £50 for you & me
https://share.octopus.energy/glass-lane-979
Bash @bashthebox.bsky.social I make fancy kitchens and wardrobes and stuff, but mostly post a load of old rubbish
www.themoderncarpenter.com
Chris @chrsphr.uk Mostly Scottish. Map lover, lithophile, tech person and discoverer of many lichens. Vitreous lustre, poor cleavage. he/him 🏳️🌈
📍Edinburgh
Simon McCartney @simonmcc.bsky.social random([“Cars”, “Coffee”, “Computers”, “Family”])
André @andrec81.bsky.social
Passivhaus architect, cyclist, trial and error gardener
#passivhaus #retrofit #cycling
@mrwillfell.bsky.social @mrwillfell.bsky.social 
KORE Retrofit @koreretrofit.bsky.social KORE Retrofit is your one-stop shop for full domestic, commercial and community-based deep retrofit & project management services in Ireland.
National Emergency Services Museum @nesm.bsky.social National Emergency Services Museum (NESM) is located in Sheffield. It is a unique museum dedicated to the emergency services and their personnel. The museum is situated in a historic Victorian building that served as a Police, Fire, and Ambulance Station
Technology Connections @techconnectify.bsky.social I'm that YouTuber who taught you how dishwashers work. Guess I'm tryin' out the whole Bluesky thing now.
he/him
https://www.youtube.com/technologyconnections
Jason Long @jasonlong.me product design @ planetscale · ex-github · vim enjoyer
jasonlong.me
James Laverack @jamesl.bsky.social Kubernetes, Cilium, and eBPF 🐝 | Technical Author 📚 | Bisexual 🩷💜💙 | ADHD 🧠 | Former K8s Release Team 🛳️
lukegb @lukegb.dev SRE for a http://en.wikipedia.org/wiki/FWSE. He/him. Probably looking for some fruit tea. @lukegb@treehouse.systems over there
Matt @mattatat.bsky.social Musician. Visual Artist. They/Them
www.mtate.org
Sophie @localghost.dev 🐕 Dog botherer
🚀 Staff Eng
🚧 Web1 enthusiast and fan of pointless websites
👻 localghost.dev
#TransRightsAreHumanRights
Banner pic: florian.photo
Alex Zenla 🏳️⚧️ @alex.zenla.io Founder & CTO @ Edera (founded by three women)
she/her; 27; Seattle, WA
LinkedIn: https://linkedin.com/in/azenla
GitHub: https://github.com/azenla
Follow Edera! @edera.dev
❤️ Be kind and thoughtful... and do cool things! ❤️
Katie Fenn @katiefenn.bsky.social She/her from Sheffield. Talks about tech and trans rights. Former NPM, Monzo, Canonical. Train, car & bike geek for ending car dependence. Greens for HS2 and LGBTIQA+ Greens. Co-organiser Front End North. Can't answer DMs.
Oli Lane @olane.dev It’s abundantly clear that these guys are on the frontlines of whatever this is.
Scott Riley @scott.is designer for real humans / author / speaker / educator / acab / buy my fuckin book / take my fuckin course
Mindful Design video course:
https://piccalil.li/mindful-design
Other gaffs:
https://scott.is
https://mindfuldesign.xyz
Dan @thebsdbox.co.uk Tinkerer extraordinaire 👨🔧 mainly eBPF 🐝, Kubernetes, Cilium and kube-vip.io
Rupert Cook @rupertcook.bsky.social Husband & father | Oram’s Arbour, Winchester | Lamb’s Conduit Street, London
Partner Miltiadou Cook Mitzman | New build | Retrofit | Craft | Comfort | Certified Passive House Designer | Trustee University Design Forum
Vegan | Self-builder | LGBTQI+ Ally
Sinjo @sinjo.dev Perilously online computer toucher. Enjoyer of hiking, photography, and gaming.
Blog: https://blog.sinjakli.co.uk/
Elsewhere: https://sinjo.dev/
he/him ✌🏻💖
Glyn Hudson @glynhudson.bsky.social Co-founder of @openenergymon, passionate about energy transition and low carbon travel. Love rock climbing, cycling & outdoor adventures, 9yrs #FlightFree https://openenergymonitor.org https://heatpumpmonitor.org https://zerocarbonadventures.co.uk/
Cotality UK @cotalityuk.bsky.social Making the property sector faster, smarter and more sustainable. Formerly CoreLogic.
Tabitha Binding @tabithabinding.bsky.social Climate Conscious Construction | Retrofit First | Working for @passivhaustrust.bsky.social and Coaction Training CIC | @aecb.bsky.social member | Loves - my deep retrofit, fermentation, sufficiency, nerdy stuff!
Sheffield Tribune @sheffieldtribune.bsky.social Sheffield's new quality newspaper — sent via email to over 34,000 readers. Join for free at the link below. Always looking for new writers and new stories — DM us.
www.sheffieldtribune.co.uk
Keeper of the Peak @keeperofthepeak.bsky.social Keeper of the Peak is a feed for riders in the Peak District. Riders send in details of where they’ve been and what kind of condition the path was in, then we share it with everyone else.
Everyone then gets a live(ish) update on the Peak District paths.
Old Sheffield @oldsheffield.bsky.social Mostly then and now pictures of the Steel City , occasional personal views on music, life and dogs 🐕 
Pete Apps @peteapps.bsky.social Inside Housing + freelance elsewhere. Author of Orwell Prize winning Show Me The Bodies - How We Let Grenfell Happen. https://peteapps.substack.com
Loco Home Retrofit CIC @locohome.bsky.social Holistic home improvement support for households, trades and local gov on maintenance, heat pumps, insulation and healthy ventilation.
Community energy coop/ community-led action on climate change/ home improvement agency.
Greater Glasgow, Scotland
Nathan Wood @nathanwood8.bsky.social Ventilation geek, raising awareness of incorrect installations leading to poor indoor environments that impact our health.
Enabling change in the industry by raising standards and compliance.
Straight talking, no assholes please..
Low Carbon Homes @lowcarbonhomes.bsky.social Domestic property energy consumption contributes significantly to UK carbon emissions (14%). Low Carbon Homes tackles this by fostering collaboration among housing professionals and suppliers to accelerate retrofitting existing homes | Retrofit Action Week
Brian Grant @bgrant0607.bsky.social CTO/cofounder of ConfigHub. Original lead architect of Kubernetes and creator of its declarative configuration model.
Wolfgang Feist @wolfgangfeist.bsky.social Humanist. Physicist. Educator. Engineer.
Energy efficiency is key to solving the climate crisis – and the problems associated with it. Energy efficiency is NOT an abstract concept: it is real in the form of passive houses, heat pumps, electric vehicles,...
Coaction Training CIC @coaction.bsky.social Practitioner led | Not-for-profit org | Providing training for construction professionals to meet the climate emergency 
Gwilym Still @gwilymstill.bsky.social Passivhaus designer and certifier, and MEP consultant at Max Fordham LLP. Views my own.
George Morgan 🌈 @georgemorgan.bsky.social London-based designer.
https://www.onepointfivearchitecture.com/
He/him.
Dysgwr Cymraeg.
Built Environment - Smarter Transformation @be-stbuild.bsky.social BE-ST is your launchpad to a net zero carbon built environment.
Greengauge @greengaugebec.bsky.social Greengauge Building Energy Consultants is a building & engineering consultancy specialising in sustainable, low energy design. Offices in Wiltshire & Yorkshire. https://ggbec.co.uk/
konnaire @konnaire.bsky.social ✺ Designing ➪ https://konnai.re
✺ Taking photos ➫ https://konnai.re/leisuredome
✺ Writing ➬ https://vonkirschnell.haus/
David Olusoga @davidolusoga.bsky.social British-Nigerian Historian - BAFTA Winning Producer/Presenter - Best Selling Author - AGENT cwalker@unitedagents.co.uk
James Wallbank @dataknotsdesks.bsky.social Artist. Designer. Maker. Cottage Industrialist. Operates lasers and has opinions. 🪧
Beth Fraser @edinbeth.bsky.social FE software developer
jonny sywulak @jonnysywulak.bsky.social old man yells about cloud ☁️
Black Lives Matter ✊🏽✊🏾✊🏿
Trans Rights are Human Rights 🏳️⚧️
Trust Women 🚺
Free Palestine 🇵🇸
Be Excellent to Each Other 🎸
Sheffield Museums @sheffieldmuseums.bsky.social Six museums and historic sites across the city, creating life-shaping, eye-opening, joy-filled memories with you ✨
Dafydd Vaughan @daivaughan.uk Geek. Cymru. Digital technology specialist. Consulting Practice CTO at Public Digital. Independent Member for Digital at Aneurin Bevan University Health Board. Co-founder of GDS. Views my own.
Jay Rogers @colourbyrogers.bsky.social Independent Senior Colourist 🎨👨🎨
Available Remotely, Worldwide & Based in Tonbridge. 🏳️🌈
colourbyrogers.co.uk
Luc van Donkersgoed @lucvandonkersgoed.com AWS Serverless Hero & Principal Engineer @ PostNL
CfgMgmtCamp @cfgmgmtcamp.bsky.social The Largest Open Source Infrastructure automation Conference 
Cloud Native Rejekts @rejekts.io JOIN THE REJEKTS!
❌ Cloud Native Rejekts EU - March 21, 2026 | Amsterdam ❌
#Rejekts2026
https://cloud-native.rejekts.io/
Sean W @insan3gl0ss.bsky.social 
Andy Kershaw Media @andyksheff.bsky.social Award winning former BBC Journalist, Training Manager with syfab.org.uk (part of sycf.org.uk) Charity Consultant & Funding Adviser, Trustee and Active Citizen in Sheffield
Jon Topper @topper.me.uk Founder, @scalefactory.com (The AWS SaaS Experts)
AWS Ambassador.
Food enthusiast. Polyam.
Based in Yorkshire, UK
he/him
The Scale Factory @scalefactory.com Award-winning consultancy, empowering SaaS teams to deliver more on AWS. We're an AWS Advanced Consulting Partner, and a Kubernetes Certified Service Provider. Part of Ten10.
Lili Cosic @lilicosic.com 👩🏻💻 Core Database Engineer @InfluxData working on InfluxDB v3 Enterprise.
📉 Advisor to Polar Signals.
I enjoy talking about databases, observability and good food.
Previously @ HashiCorp, Red Hat.
Now in Berlin 🇩🇪 from 🇸🇮
Tom @tomhylands.bsky.social #bhafc ⚽️ Scouting 🏕️ Gin Drinker 🍸
Communicator 💻 Iceland Regular 🇮🇸 Photo enthusiast 📸 IG: @tomhylands - views my own etc.
danielle @danielle.fyi artist by nature, engineer by trade. photographer. glassblower.
Building WASM and cloud things ⌨️
web: https://danielle.fyi
photography: https://danielle.photo- B bad internet @badinternet.oracularhades.com run by @oracularhades.com | @ or DM this account with suggestions
Nick Grant @ecominimalnick.bsky.social Energy consultant and design engineer. Specialising in Passivhaus building, archives and museums.
Teaching building physics with https://coaction.org.uk
The Good Building Book with Jon Broom - https://www.bloomsbury.com/uk/good-building-book-9781399417136/
Alex Boten @boten.ca Writes open source software and about technology sometimes. Problems solver & author. He/him https://dot.cards/codeboten
Kate @katef.bsky.social If I unfollowed you, it's because you keep posting things without alt text
A.L. Goldfuss @ghoulpus.bsky.social Writer | BEST AMERICAN SFF 2026 | BRAVE NEW WEIRD vol 4 | Stories in Lightspeed / Nightmare / Fantasy | Upcoming in Reactor | More info algoldfuss.com | Newsletter https://buttondown.com/algoldfuss | xe/xir/xem
Alex Hidalgo @alex-hidalgo.com I'm back! | Field CTO at Nobl9 | Author of The SLO Book. | "SRE's Raconteur" | I like dogs more than people.
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
Cllr Owen Burbidge 🔶 @oburbidge.bsky.social Scientist, Husband, Parent to Crumble the Romanian rescue. Lib Dem councillor for West Fenham, Newcastle upon Tyne
🔶🏳️🌈 he/him
fallthrough @fallthrough.fm A technology podcast from the Go perspective.
Honeycomb @honeycomb.io Honeycomb is the observability platform built for the new shape of software.
Ellen Beardmore @e-beardmore.bsky.social Freelance writer + PR in Sheffield | former editor | runner | foodie.
Sheffield.Digital @sheffield.digital The association for Sheffield’s digital industries.
Membership Community | Tech Jobs Board | Mentoring Scheme | Newsletter | Podcast | Slack Group | Events Calendar | Blog | GeekBrekky every Friday |
🌐https://sheffield.digital/
Patrick Osborne @patrick-osborne.bsky.social Architect and Passivhaus designer, interested in retrofit and low carbon design
Sally Godber @sallygodber.bsky.social Engineer & Passivhaus Certifier. Director of WARM: Low Energy Building Practice (https://peterwarm.co.uk) and Coaction training CIC (https://coaction.org.uk/)
www.edenarchitects.ie @edenarchitects.bsky.social Creating beautiful, bright spaces that are comfortable, healthy and low energy. Passive House Design Consultants.
John Barry Lowe @teachspruis.bsky.social Architect, Director EDEN architects, Certified Passive House Designer, Architecture Design Fellow APEP-University College Dublin
Ben @ecohaus.bsky.social Builder, passivehouse consultant, love all things old, buildings, cars, people! Passionate about finding and solving defects in buildings especially water related, forever learning (currently AECB CLR), building physics fan, restoring a car for fun.
Nick Simpson @iamnicksimpson.bsky.social Architecture | Sustainability | Politics | Passivhaus | Cycling | Cities | EU
ZXGuesser @zxguesser.bsky.social Online teletext viewer: https://zxnet.co.uk/teletext/viewer
Online teletext editor: https://zxnet.co.uk/teletext/editor
Teletext art: https://zxnet.co.uk/teletext/gallery
Teletext discord: https://discord.gg/JfytfS3xmg
Tom Coffeen @ipv6tom.bsky.social Since 325ppm | #IPv6 | HexaBuild | Co-Host IPv6 Buzz Podcast |
@oreilly.bsky.social Author | #ClimateAction #FlightFree2026
Dave Eddy @daveeddy.com I run ysap.sh and have a series called You Suck at Programming online. We talk about bash, unix systems, and stuff like that. https://youtube.com/@yousuckatprogramming
silverphish🏳️🌈 @silverphish.bsky.social I make fun hacker things
Bump the lamp
TracketPacer @tracketpacer.com 🚀rockit network engineer
👩🏼💻ethernet fangirl
🛜 weird use cases & silly tech!
💌 tracket@tracketpacer.com
🌎 tracketpacer.com
Tom 2Na @tom2na.bsky.social Sheffield lad now living in the beautiful Peak District. Interested in photography, mainly film and other analogue processes. Baby and house renovation have taken over a bit though. Also. Nature, sustainability, politics, art, poetry.