Kodsnack in English

Fredrik is joined by Malin Sundberg and Kai Dombrowski for a quick chat about the Deep dish Swift conference, the past and present of Mercury weather, their next app project, and what might happen at Apple’s WWDC in June. The first big topic is the developer conference Deep dish Swift. Malin and Kai not only participated in the conference itself, but also created the Slices podcast, interviewing the speakers of the conference. How are indie developers different from each other, and why might it be a bad idea for Malin and Kai to do a regular podcast with Charlie Chapman? We then dig into the evolution of Mercury weather since the last episode - especially the trip forecast feature. Yes: timezones were a big part of the challenge. The secret marketing advantage of having a Mac version of your IOS app. Next Malin and Kai talk about their movie industry project - an app for planning shoot days for movies and TV. A project which has given them lots of insight into the quirks of a whole new industry, and made them see whole different things in movies they watch. We revisit our use of VR for work and gaming. VR of course shades naturally into bringing Mercury to Vision pro - a quick process, but some interesting adjustments were required. With WWDC fast approaching, we talk wishes and ideas. What would we like the Ipad to become? We do some interesting speculation about Apple’s coming focus on “AI” and how that might work together with apps. Fredrik should perhaps spend some time on his Mac app? Finally, Malin and Kai reveal their summer project: a kanban-style workflow tracking app. Done with paper cuts! Also: good deadlines. If Apple gives you one for free, you take it! Thank you Cloudnet for sponsoring our VPS! Comments, questions or tips? We a re @kodsnack, @tobiashieta, @oferlund and @bjoreman on Twitter, have a page on Facebook and can be emailed at info@kodsnack.se if you want to write longer. We read everything we receive. If you enjoy Kodsnack we would love a review in iTunes! You can also support the podcast by buying us a coffee (or two!) through Ko-fi. Links Malin Kai Triple glazed studios Mercury weather Orbit Core coffee - Malin and Kai’s meetups. There are both online and in-person events Bahnhof ICQ JSDay in Verona Grusp Deep dish Swift Josh - arranger of Deep dish Swift Øredev Slices - the podcast interviewing speakers of Deep-dish Swift Charlie Chapman Charlie’s Slices episode for 2024 (he participated in 2023 as well) Jessie Linden - talked about Swift and gestures Jessie’s episode of Slices Deep-dish pizza Giordano’s - one of the original deep-dish pizzas Liu Malnati’s - much thicker deep-dish pizza Kodsnack 493 - The last episode with Malin and Kai Six colors on Mercury’s trip forecast Tornado alley Air force one Fallout - the TV series Roy Andersson The last of us The room Red matter Doom VFR Meta remote desktop Immersed Imac G4: “The old Imac with the arm” Swiftui Swift charts The Ipad event Procreate Stage manager Ferrite Lumafusion Kanban Jira Trello Shortcuts Podcast chapters WWDC meetups Synk - Fredrik’s latest podcast Titles Gigabit for ten crowns less Good job, brain Completely solidified knowledge In the right track already A good strategy for conferences The right amount of time to talk to people Snub two people at once It’s nice to be done A procrastination project Not the smartest time management decision Proper pizza research Podcasting and pizza 22 back to 3 An interesting pile of edge cases How do we handle that in the app? You lose most of your Sunday Ask to push lunch The logistics of filming Making a movie versus building an app The Ipad strapped to his belt Everything gets to me A world clock for weather People have clocks for that Xcode, but for touch Done with paper cuts! A very clean look into the state of our projects Ever-growing “done” column All the modes I made A free deadline in September If Apple gives you a free deadline, you take it Venture together to Infinite Loop

Fredrik is joined by Emil Privér and Leandro Ostera for a discussion of the OCaml ecosystem, and making it Saas-ready by building Riot. First of all: OCaml. What is the thing with the language, and how you might get into it coming from other languages? The OCaml community is nice, interested in getting new people in, and pragmatic. And it has a nice mix of research and industry as well. Then, Leandro tells us about Riot - an experiment in bringing everything good about the Erlang and Elixir ecosystems into OCaml. The goal? Make OCaml saas-ready. Riot is not 1.0 just yet, but an impressive amount has been built in just five(!) months. Emil moves the discussion over to the mindset of shipping, and of finding and understanding good ideas in other places and picking them up rather than reinventing the wheel. Leandro highly recommends reading the code of other projects. Read and understand the code and solutions others have written, re-use good ideas and don’t reinvent the wheel more often than you really have to. Last, but by no means least, shoutouts to some of the great people building the OCaml community, and a bit about Emil’s project DBCaml. Thank you Cloudnet for sponsoring our VPS! Comments, questions or tips? We a re @kodsnack, @tobiashieta, @oferlund and @bjoreman on Twitter, have a page on Facebook and can be emailed at info@kodsnack.se if you want to write longer. We read everything we receive. If you enjoy Kodsnack we would love a review in iTunes! You can also support the podcast by buying us a coffee (or two!) through Ko-fi. Links Emil Leo Leo on Twitch Previous Kodsnack appearances by Emil Riot Sinatra Backbone.js Ember.js Angularjs React Erlang Tarides - where Leandro currently works OCaml Robin Milner - designer of ML Caml Javacaml F# Imperative programming Object-oriented programming Pure functions and side effects Monads The OCaml compiler Reason - the language built by Jordan Walke, the creator of React Standard ML React was prototyped in Standard ML Melange - OCaml compiler backend producing Javascript OCaml by example The OCaml Discord The Reason Discord Rescript Jane street High-frequency trading The Dune build system Erlang process trees Caramel - earlier experiment of Leandro’s Louis Pilfold Gleam Algebraic effects Continuations Pool - Emil’s project Gluon Bytestring Atacama - connection pool inspired by Thousand island Nomad - inspired by Bandit Trail - middleware inspired by Plug Sidewinder - Livewire-like Saas - software as a service DBCaml Johan Öbrink Ecto Mint tea - inspired by Bubble tea Autobahn|Testsuite - test suite for specification compliance Serde - Rust and OCaml serialization framework S-expressions TOML Dillon Mulroy Metame - community kindness pillar welltypedwitch Sabine maintains ocaml.org OCaml playground OCaml cookbook - in beta, sort of teej_dv ocaml.org Pool party Drizzle SQLX SQL Join types (left, inner, and so on) dbca.ml internet.bs The Caravan Essentials of compilation Reading rainbow Titles Few people can have a massive impact Impact has been an important thing for me It’s a language out there A very long lineage of thinking about programming languages Programs that never fail The functional version of Rust Melange is amazing This is not a toy project Yes, constraints! Wonders in community growth Arrow pointing toward growth Programs that don’t crash A very different schoold of reliability Invert the arrow Very easy on the whiteboard Multicore for free An entire stack from scratch Built for the builders A massive tree of things Make OCaml saas-ready Leo is a shipper Standing on the shoulders of many, many giants Learn from other people I exude OCaml these days Sitting down and building against the spec You just give it something Your own inner join We build everything in public The gospel of the dunes

Eric Normand joins Fredrik to discuss the importance of domain modeling and design in software development. They explore the concept of lenses for gaining new perspectives on coding. The conversation emphasizes the need for thoughtful design and the value of refactoring to improve code quality. Recorded at Øredev 2023, Eric gave presentations on software design and functional architecture.

Fredrik has Matt Topol and Lars Wikman over for a deep and wide chat about Apache Arrow and many, many topics in the orbit of the language-independent columnar memory format for flat and hierarchical data. What does that even mean? What is the point? And why does Arrow only feel more and more interesting and useful the more you think about deeply integrating it into your systems? Feeding data to systems fast enough is a problem which is focused on much less than it ought to be. With Arrow you can send data over the network, process it on the CPU - or GPU for that matter- and send it along to the database. All without parsing, transformation, or copies unless absolutely necessary. Thank you Cloudnet for sponsoring our VPS! Comments, questions or tips? We are @kodsnack, @tobiashieta, @oferlund and @bjoreman on Twitter, have a page on Facebook and can be emailed at info@kodsnack.se if you want to write longer. We read everything we receive. If you enjoy Kodsnack we would love a review in iTunes! You can also support the podcast by buying us a coffee (or two!) through Ko-fi. Links Lars Matt Øredev Matt’s Øredev presentations: State of the Apache Arrow ecosystem: How your project can leverage Arrow! and Leveraging Apache Arrow for ML workflows Kallbadhuset Apache Arrow Lars talks about his Arrow rabbit hole in Regular programming SIMD/vectorization Spark Explorer - builds on Polars Null bitmap Zeromq Airbyte Arrow flight Dremio Arrow flight SQL Influxdb Arrow flight RPC Kafka Pulsar Opentelemetry Arrow IPC format - also known as Feather ADBC - Arrow database connectivity ODBC and JDBC Snowflake DBT - SQL to SQL Jinja Datafusion Ibis Substrait Meta’s Velox engine Arrow’s project management committee (PMC) Voltron data Matt’s Arrow book - In-memory analytics with Apache Arrow Rapids and Cudf The Theseus engine - accelerator-native distributed compute engine using Arrow The composable codex The standards chapter Dremio Hugging face Apache Hop - orchestration data scheduling thing Directed acyclic graph UCX - libraries for finding fast routes for data Infiniband NUMA CUDA GRPC Foam bananas Turkish pepper - Tyrkisk peber Plopp Marianne Titles For me, it started during the speaker’s dinner Old, dated, and Java A real nerd snipe Identical representation in memory Working on columns It’s already laid out that way Pass the memory, as is Null plus null is null A wild perk Arrow into the thing So many curly brackets you need to store Arrow straight through Something data people like to do So many backends The SQL string is for people I’m rude, and he’s polite Feed the data fast enough A depressing amount of JSON Arrow the whole way through These are the problems in data Reference the bytes as they are Boiling down to Arrow Data lakehouses Removing inefficiency

Recorded on-stage at Øredev 2023 just after her keynote, Fredrik chats to Diana Larsen about leadership and building good teams. How to get into leaderhip? Often it’s more about picking up expectations than getting a formal onboarding Learning to not do things yourself when you start leading - everything you do is one less thing the team learns to do for itself Leadership roles are on different levels, and on a different level than non-leadership positions. A lot of thing can become invisible to people on other levels. Some things should be, others should be made visible. People want to be understood, and understand what other people in the organization are doing and what challenges they have. And everything doesn’t have to be a formal meeting with agendas and stuff. Power dynamics - hard to percieve and to talk about. Even what location you are in can become part of the power dynamics and important to take into consideration. Teams - they also exist on different levels. They don’t have to be static. Thank you Cloudnet for sponsoring our VPS! Comments, questions or tips? We are @kodsnack, @tobiashieta, @oferlund and @bjoreman on Twitter, have a page on Facebook and can be emailed at info@kodsnack.se if you want to write longer. We read everything we receive. If you enjoy Kodsnack we would love a review in iTunes! You can also support the podcast by buying us a coffee (or two!) through Ko-fi. Links Øredev The Øredev 2023 video playlist on Youtube Diana Diana’s keynote: Catch fire with resilient learning teams Diana’s second presentation: Stop wasting time on ineffective retrospectives! Diana’s books: Agile retrospectives Liftoff The five rules of accelerated learning Chris Corrigan - “Everything you do for the group is one less thing they know they can do for themselves” (in the lower half of the page) James Shore The Agile fluency game Circles & soup retro Scrum Mob programming Titles Leaders and followers Starting with courage Learning is okay here We can’t know it all Unknown power Strong three-person teams

Recorded on-stage at Øredev 2023 just after his keynote, Fredrik chats to Cyrus Clarke about plants, imagining things, exploring, and building. And not presenting speculative things as possible here right now. Daring to not be useful right now. How to bridge the gap between theory and academia on one side and practice and industry wanting to build things right now? By example. Do our short time scales and focus on iteration hurt us? Eighteen months sounds like an impossibly long timespan, because we think in two-week iterations of what we have and customers want right now. Getting in touch with researchers. Adapt how you talk to people! Scientists and artists are very similar. We are all at intersections between things. Thank you Cloudnet for sponsoring our VPS! Comments, questions or tips? We are @kodsnack, @tobiashieta, @oferlund and @bjoreman on Twitter, have a page on Facebook and can be emailed at info@kodsnack.se if you want to write longer. We read everything we receive. If you enjoy Kodsnack we would love a review in iTunes! You can also support the podcast by buying us a coffee (or two!) through Ko-fi. Links Øredev The Øredev 2023 video playlist on Youtube Cyrus Cyrus' keynote: Storing data nature’s way Cyrus' previous projects South by Southwest The non-fungible plant NFT:s Anthurium - the plant Titles Data and plants Non-fungible plants That nice melting pot Scientists are also artists A little bit more imaginative That’s all we are Constant “of course"s

Recorded on-stage at Øredev 2023 just after her keynote, Fredrik chats to Na’Tosha Bard about picking good building blocks, getting products done, and code outliving you. Software outlives you. How early is it meaningful to consider that fact? Will we get better at handling long-lived software? Make tradeoffs with open eyes. Na’Tosha has worked on many different levels of hardware and software, as well as many different levels in organizations - what can be picked up from the various levels? Thank you Cloudnet for sponsoring our VPS! Comments, questions or tips? We are @kodsnack, @tobiashieta, @oferlund and @bjoreman on Twitter, have a page on Facebook and can be emailed at info@kodsnack.se if you want to write longer. We read everything we receive. If you enjoy Kodsnack we would love a review in iTunes! You can also support the podcast by buying us a coffee (or two!) through Ko-fi. Links Øredev The Øredev 2023 video playlist on Youtube Na’Tosha Na’Tosha’s keynote: Finding the beauty in the digital brick XKCD about standards Sandy Mamoli talked about lessons from handball applied to software Premature optimization Cloud-agnosticism Unity KMD - where Na’Tosha works now Titles A lot of nodding Perfect is maybe also a delusion Microservice theater Solving a problem for humans Software outlives you Sitting on a mainframe somewhere

Recorded on-stage at Øredev 2023 just after her keynote, Fredrik chats to Galit Ariel about being inspired by the right science fiction, uninspired futures, and much more. It’s all thanks to Star Trek - a vision of the future which is actually positive and thoughtful What science fiction can teach us about what we think of as the other Uninspired future building - is it that things become so big they become more bland because they can’t afford to not be wide and bland? Too much push for product and profit Microsoft, AI, and the panic to surf the current wave Will cultures change? Perhaps a recession will help - reality is biting a bit at the worst misdirections. When things are stale and still, more interesting and nuanced things have the time to happen Also: the new generation is looking good! Thank you Cloudnet for sponsoring our VPS! Comments, questions or tips? We are @kodsnack, @tobiashieta, @oferlund and @bjoreman on Twitter, have a page on Facebook and can be emailed at info@kodsnack.se if you want to write longer. We read everything we receive. If you enjoy Kodsnack we would love a review in iTunes! You can also support the podcast by buying us a coffee (or two!) through Ko-fi. Links Øredev The Øredev 2023 video playlist on Youtube Galit Galit’s keynote - The tech we all deserve Star Trek The M-word Uber and competitors have increased traffic John Maeda Bluejeans Titles My whole family is tiny All I had was science fiction The whole paradigm of Star Trek What we think the “other” is The M-word A 3d shopping mall A virtual Excel sheet A better person to drive over You solved a discomfort and created a bigger problem The beige This is reality biting

Recorded on-stage at Øredev 2023 just after her keynote, Fredrik chats to Monika Bielskyte about finding, building, and approaching better visions for the future. We discuss things such as: Disabilities for innovation and better design More inclusion in design for people on edges improves the world for precisely everyone Why does a concept like protopia feel so new? Why have we been stuck thinking about dystopias and exclusive utopias for so long? Informed hope. Everything has a context, and the context matters! No huge solution for everything Design with, not for We all create the future all the time. Propaganda and disinformation wants to overwhelm, to disengage. But we can all counteract this and improve the world by doing good things in our daily lives. Put more good information into the systems - and remember to make it cool as well! We never arrive at a perfect future, it’s the steps we take and what we make here and now that builds it. All or nothing is the old utopia-dystopia thing again - the zero-sum game. Dystopian storytelling is way too easy. Thank you Cloudnet for sponsoring our VPS! Comments, questions or tips? We are @kodsnack, @tobiashieta, @oferlund and @bjoreman on Twitter, have a page on Facebook and can be emailed at info@kodsnack.se if you want to write longer. We read everything we receive. If you enjoy Kodsnack we would love a review in iTunes! You can also support the podcast by buying us a coffee (or two!) through Ko-fi. Links Øredev The Øredev 2023 video playlist on Youtube Protopia principles - scroll down or search the page for “principles of protopia” Monika Monika’s keynote - Challenging dystopianism: futures literacy & radical imagination Neurodivergence PTSD - post-traumatic stress disorder Sensory hypersensitivity The military-industrial complex Marinetti - Filippo Tommaso Marinetti, co-author of the fascist manifesto in 1919 Marc Andreessen - a man who could be replaced by even a medium language model without anyone really noticing Torill Kornfeldt and Tim Urban at Øredev 2015(!) discussing AI and superintelligence versus the biologist view Titles From Los Angeles to Doha Subtitles aren’t just for deaf people When your country gets invaded From a neurodivergent lens At the bleeding edge of harm Lack of curiousity Informed hope Written by a chatbot Look how the subduing worked out for us Open to be wrong Beyond just inflammatory headlines Create the best possible world We lift each other up

Recorded at Øredev 2022, Fredrik chats with Natalia Tepluhina about perhaps the most complicated part of frontend development: state management. Why is state management so tricky, and what can we do about it? Natalia tells a fascinating story of a beautiful abomination of state management libraries in a single application. Don’t be the bottleneck. Some people enjoy it, but it doesn’t do you any good (or your company for that matter). Natalia realized she had become one, and took action to resolve the issue. Once we leave state behind us, we discuss documentation writing and contributions - in many ways it’s actually harder than contributing to code. You need a much wider perspective, so the idea that documentation is some easy start to contributing isn’t necessarily correct. Finally: never forget to reach out! Report the issue, offer to help, ask for the feature, or whatever else it is that you’ve thought about doing but never got around to! Thank you Cloudnet for sponsoring our VPS! Comments, questions or tips? We are @kodsnack, @tobiashieta, @oferlund and @bjoreman on Twitter, have a page on Facebook and can be emailed at info@kodsnack.se if you want to write longer. We read everything we receive. If you enjoy Kodsnack we would love a review in iTunes! You can also support the podcast by buying us a coffee (or two!) through Ko-fi. Links Natalia Deep down the rabbit hole of state management and server cache - Natalia’s talk at Øredev 2022 Vue.js Gitlab State management Single source of truth Vue query Jquery React query Apollo client Observables Rxjs Vuex Reactivity Classes in Javascript Tower of Hanoi Jenga Curl Titles I don’t have frontend in my title Silver bullets in the world of state management Explaining magic to your team mates Pretty simple but not that magical Too much magic going on Contagious reactivity This beautiful abomination Constantly growing and changing Another kind of abomination Some people enjoy being a bottleneck