Fredrik Teschke
@ftes.de
Elixir full-stack developer with that extra boost 🚀
Tinkering:
phoenix_test browser based tests with WebDriver bidi.
Using butterbee lib (#gleamlang).
github.com/germsvel/pho...
#elixirlang
phoenix_test browser based tests with WebDriver bidi.
Using butterbee lib (#gleamlang).
github.com/germsvel/pho...
#elixirlang
Butterbee driver (WebDriver bidi) 🚧 by ftes · Pull Request #278 · germsvel/phoenix_test
We read every piece of feedback, and take your input very seriously.
github.com
November 15, 2025 at 11:37 AM
Tinkering:
phoenix_test browser based tests with WebDriver bidi.
Using butterbee lib (#gleamlang).
github.com/germsvel/pho...
#elixirlang
phoenix_test browser based tests with WebDriver bidi.
Using butterbee lib (#gleamlang).
github.com/germsvel/pho...
#elixirlang
Reposted by Fredrik Teschke
We didn’t expect such a big response this year, and we love to see it. If you haven’t filled it in yet, you now have time until November 18.
💜 elixir-survey.typeform.com/2025-edition
#elixir #elixirlang #myelixirstatus #elixirprogramming
💜 elixir-survey.typeform.com/2025-edition
#elixir #elixirlang #myelixirstatus #elixirprogramming
November 14, 2025 at 10:07 AM
We didn’t expect such a big response this year, and we love to see it. If you haven’t filled it in yet, you now have time until November 18.
💜 elixir-survey.typeform.com/2025-edition
#elixir #elixirlang #myelixirstatus #elixirprogramming
💜 elixir-survey.typeform.com/2025-edition
#elixir #elixirlang #myelixirstatus #elixirprogramming
I present: playwright_ex
A simple Playwright client for #elixirlang.
Experimental.
Extracted from phoenix_test_playwright.
PRs welcome!
It's not comprehensive, because that's a daunting task (see playwright-elixir).
But it should be easy to add anything that's missing.
hexdocs.pm/playwright_ex/
A simple Playwright client for #elixirlang.
Experimental.
Extracted from phoenix_test_playwright.
PRs welcome!
It's not comprehensive, because that's a daunting task (see playwright-elixir).
But it should be easy to add anything that's missing.
hexdocs.pm/playwright_ex/
PlaywrightEx v0.1.0 — Documentation
hexdocs.pm
November 13, 2025 at 2:45 PM
I present: playwright_ex
A simple Playwright client for #elixirlang.
Experimental.
Extracted from phoenix_test_playwright.
PRs welcome!
It's not comprehensive, because that's a daunting task (see playwright-elixir).
But it should be easy to add anything that's missing.
hexdocs.pm/playwright_ex/
A simple Playwright client for #elixirlang.
Experimental.
Extracted from phoenix_test_playwright.
PRs welcome!
It's not comprehensive, because that's a daunting task (see playwright-elixir).
But it should be easy to add anything that's missing.
hexdocs.pm/playwright_ex/
#ElixirConfEU call for talks is open (Apr 23-24, Malaga).
I submitted: Changeset driven forms.
Interested?
Which aspects should I focus on? 👇
#elixirlang
www.elixirconf.eu
I submitted: Changeset driven forms.
Interested?
Which aspects should I focus on? 👇
#elixirlang
www.elixirconf.eu
November 13, 2025 at 10:19 AM
#ElixirConfEU call for talks is open (Apr 23-24, Malaga).
I submitted: Changeset driven forms.
Interested?
Which aspects should I focus on? 👇
#elixirlang
www.elixirconf.eu
I submitted: Changeset driven forms.
Interested?
Which aspects should I focus on? 👇
#elixirlang
www.elixirconf.eu
Reposted by Fredrik Teschke
News includes ReqLLM 1.0 with standardized LLM APIs, Codicil bringing semantic code understanding to #AI assistants, Tidewave Web expanding to #Python and more, playwright browser pooling, and #PostgreSQL WAL for DB notifications! #ElixirLang www.youtube.com/watch?v=tXp8...
Thinking Elixir Podcast 278: WAL-ing Through Database Changes
YouTube video by Mark Ericksen
www.youtube.com
November 11, 2025 at 1:53 PM
News includes ReqLLM 1.0 with standardized LLM APIs, Codicil bringing semantic code understanding to #AI assistants, Tidewave Web expanding to #Python and more, playwright browser pooling, and #PostgreSQL WAL for DB notifications! #ElixirLang www.youtube.com/watch?v=tXp8...
Refactored: Converted PhoenixTest.Playwright.Connection from GenServer to :gen_statem.
So much more expressive for this use case.
Thanks @Coby Benveniste for the inspiraton at #codebeam.
Even though this isn't AI related.
github.com/ftes/phoenix...
#elixirlang
So much more expressive for this use case.
Thanks @Coby Benveniste for the inspiraton at #codebeam.
Even though this isn't AI related.
github.com/ftes/phoenix...
#elixirlang
Convert Connection to :gen_statem · ftes/phoenix_test_playwright@157f04e
github.com
November 11, 2025 at 9:02 PM
Refactored: Converted PhoenixTest.Playwright.Connection from GenServer to :gen_statem.
So much more expressive for this use case.
Thanks @Coby Benveniste for the inspiraton at #codebeam.
Even though this isn't AI related.
github.com/ftes/phoenix...
#elixirlang
So much more expressive for this use case.
Thanks @Coby Benveniste for the inspiraton at #codebeam.
Even though this isn't AI related.
github.com/ftes/phoenix...
#elixirlang
Reposted by Fredrik Teschke
Who do you know who wants to come work full time on #ElixirLang OSS tooling? (Boosts appreciated!)
jump.ai/careers?ashb...
#ElixirJobs
jump.ai/careers?ashb...
#ElixirJobs
Careers at Jump | Jump
Jump is empowering financial advisors and their clients to thrive in the age of AI. We're growing incredibly quickly with a team that comes from Google, Stripe, JP Morgan, BILL, Nitrogen, Harvard, Sta...
jump.ai
November 7, 2025 at 12:41 AM
Who do you know who wants to come work full time on #ElixirLang OSS tooling? (Boosts appreciated!)
jump.ai/careers?ashb...
#ElixirJobs
jump.ai/careers?ashb...
#ElixirJobs
"Micro services only exist because people don't know about the BEAM."
"BEAM is like Kubernetes but with fewer meetings".
Erik Stenman
#elixirlang
"BEAM is like Kubernetes but with fewer meetings".
Erik Stenman
#elixirlang
November 5, 2025 at 1:43 PM
"Micro services only exist because people don't know about the BEAM."
"BEAM is like Kubernetes but with fewer meetings".
Erik Stenman
#elixirlang
"BEAM is like Kubernetes but with fewer meetings".
Erik Stenman
#elixirlang
Deciding on my CodeBEAM Europe agenda.
Still some conflicts I need to resolve. Any tips?
And wow, are there a lot of interesting #Gleam talks.
Hadn't planned for this, but looks like I'll be learning some more Gleam.
#elixirlang
Still some conflicts I need to resolve. Any tips?
And wow, are there a lot of interesting #Gleam talks.
Hadn't planned for this, but looks like I'll be learning some more Gleam.
#elixirlang
November 5, 2025 at 7:45 AM
Deciding on my CodeBEAM Europe agenda.
Still some conflicts I need to resolve. Any tips?
And wow, are there a lot of interesting #Gleam talks.
Hadn't planned for this, but looks like I'll be learning some more Gleam.
#elixirlang
Still some conflicts I need to resolve. Any tips?
And wow, are there a lot of interesting #Gleam talks.
Hadn't planned for this, but looks like I'll be learning some more Gleam.
#elixirlang
Announcing new hexdocs search engine
A package manager for the Erlang ecosystem
hex.pm
October 29, 2025 at 1:17 PM
Call for feedback:
phoenix_test_plawright browser pooling
Please run locally & in CI.
Useful? Stable? Configurable to your needs?
github.com/ftes/phoenix...
#elixirlang
phoenix_test_plawright browser pooling
Please run locally & in CI.
Useful? Stable? Configurable to your needs?
github.com/ftes/phoenix...
#elixirlang
Browser pool: Limit number of browsers by ftes · Pull Request #86 · ftes/phoenix_test_playwright
Experimental browser pooling. Reuses browsers across test suites. This limits memory usage and is useful when running feature tests together with regular tests (high ExUnit max_cases concurrency su...
github.com
October 28, 2025 at 3:04 PM
Call for feedback:
phoenix_test_plawright browser pooling
Please run locally & in CI.
Useful? Stable? Configurable to your needs?
github.com/ftes/phoenix...
#elixirlang
phoenix_test_plawright browser pooling
Please run locally & in CI.
Useful? Stable? Configurable to your needs?
github.com/ftes/phoenix...
#elixirlang
Surprising ⚡️:
Performance of phoenix_test_playwright already pretty good.
Compared to official javascript client.
Many tests: browser re-use (experimental) brings slight boost.
Unclear if worth the complexity.
Do you need it?
github.com/ftes/phoenix...
#elixirlang
Performance of phoenix_test_playwright already pretty good.
Compared to official javascript client.
Many tests: browser re-use (experimental) brings slight boost.
Unclear if worth the complexity.
Do you need it?
github.com/ftes/phoenix...
#elixirlang
October 26, 2025 at 10:06 AM
Surprising ⚡️:
Performance of phoenix_test_playwright already pretty good.
Compared to official javascript client.
Many tests: browser re-use (experimental) brings slight boost.
Unclear if worth the complexity.
Do you need it?
github.com/ftes/phoenix...
#elixirlang
Performance of phoenix_test_playwright already pretty good.
Compared to official javascript client.
Many tests: browser re-use (experimental) brings slight boost.
Unclear if worth the complexity.
Do you need it?
github.com/ftes/phoenix...
#elixirlang
Any hints on how to implement resource sharing in ExUnit tests?
For phoenix_test_playwright, I want shared browser instances.
Browser pool, each test module has to wait for available browser in `setup_all`.
github.com/ftes/phoenix...
Have you seen/implemented something similar before?
#elixirlang
For phoenix_test_playwright, I want shared browser instances.
Browser pool, each test module has to wait for available browser in `setup_all`.
github.com/ftes/phoenix...
Have you seen/implemented something similar before?
#elixirlang
Feature request: Limit number of concurrent e2e tests · Issue #75 · ftes/phoenix_test_playwright
Hello 👋 Big thank you for your library, it made it possible to easily test my live_vue project. Just one small question: I enjoy running all my tests with mix test, no matter if they're e2e or not....
github.com
October 6, 2025 at 4:30 PM
Any hints on how to implement resource sharing in ExUnit tests?
For phoenix_test_playwright, I want shared browser instances.
Browser pool, each test module has to wait for available browser in `setup_all`.
github.com/ftes/phoenix...
Have you seen/implemented something similar before?
#elixirlang
For phoenix_test_playwright, I want shared browser instances.
Browser pool, each test module has to wait for available browser in `setup_all`.
github.com/ftes/phoenix...
Have you seen/implemented something similar before?
#elixirlang
September 30, 2025 at 12:27 PM
"Let it Crash - Designing Robust Systems"
Our talk included a Live Demo with audience participation.
👇 More details about what Marcus and I did at Dev Connect OWL.
ftes.de/articles/202...
#elixirlang
Our talk included a Live Demo with audience participation.
👇 More details about what Marcus and I did at Dev Connect OWL.
ftes.de/articles/202...
#elixirlang
September 30, 2025 at 7:46 AM
"Let it Crash - Designing Robust Systems"
Our talk included a Live Demo with audience participation.
👇 More details about what Marcus and I did at Dev Connect OWL.
ftes.de/articles/202...
#elixirlang
Our talk included a Live Demo with audience participation.
👇 More details about what Marcus and I did at Dev Connect OWL.
ftes.de/articles/202...
#elixirlang
We asked two questions at our talk "Let it Crash - Designing Robust Systems".
What are your building blocks for robust systems?
How do you find a misbehaving part of your software?
Great answers in thread👇
My takeaway: The BEAM provides. Little need for other tools.
#elixirlang #devconnectowl
What are your building blocks for robust systems?
How do you find a misbehaving part of your software?
Great answers in thread👇
My takeaway: The BEAM provides. Little need for other tools.
#elixirlang #devconnectowl
September 24, 2025 at 12:29 PM
We asked two questions at our talk "Let it Crash - Designing Robust Systems".
What are your building blocks for robust systems?
How do you find a misbehaving part of your software?
Great answers in thread👇
My takeaway: The BEAM provides. Little need for other tools.
#elixirlang #devconnectowl
What are your building blocks for robust systems?
How do you find a misbehaving part of your software?
Great answers in thread👇
My takeaway: The BEAM provides. Little need for other tools.
#elixirlang #devconnectowl
PhoenixTestPlaywright 0.8 released 🎉
- ⚡️ speed up refute_has
- ✅ support bunx
- ✅ support phoenix_test 0.8
And other quality of dev-life improvements.
#elixirlang
- ⚡️ speed up refute_has
- ✅ support bunx
- ✅ support phoenix_test 0.8
And other quality of dev-life improvements.
#elixirlang
September 17, 2025 at 6:59 AM
PhoenixTestPlaywright 0.8 released 🎉
- ⚡️ speed up refute_has
- ✅ support bunx
- ✅ support phoenix_test 0.8
And other quality of dev-life improvements.
#elixirlang
- ⚡️ speed up refute_has
- ✅ support bunx
- ✅ support phoenix_test 0.8
And other quality of dev-life improvements.
#elixirlang
learndmarc.com
Nice fresh semi-interactive take on both checking and explaining Email security.
Nice fresh semi-interactive take on both checking and explaining Email security.
Learn and test SPF, DKIM and DMARC
Visualize, analyze and improve your email authentication setup
learndmarc.com
September 16, 2025 at 8:32 AM
learndmarc.com
Nice fresh semi-interactive take on both checking and explaining Email security.
Nice fresh semi-interactive take on both checking and explaining Email security.
Reposted by Fredrik Teschke
Sharing this with a big recommendation. You'll have a hard time finding someone as knowledgeable as @hauleth.dev
Hi Bsky hivemind, is anyone looking for seasoned #ElixirLang developer? EMEA-based, fully remote.
Either consulting or full-time.
Either consulting or full-time.
August 28, 2025 at 6:00 PM
Sharing this with a big recommendation. You'll have a hard time finding someone as knowledgeable as @hauleth.dev
phoenix_test_playwright user base has grown to 50% of phoenix_test (judging by number of downloads in past 7 days).
Surprises:
1. High number of users. Metric skewed by few power users?
2. Low support effort. Lib is 90% undocumented playwright internals. Playwright js frequently updated.
#elixirlang
Surprises:
1. High number of users. Metric skewed by few power users?
2. Low support effort. Lib is 90% undocumented playwright internals. Playwright js frequently updated.
#elixirlang
September 1, 2025 at 2:14 PM
phoenix_test_playwright user base has grown to 50% of phoenix_test (judging by number of downloads in past 7 days).
Surprises:
1. High number of users. Metric skewed by few power users?
2. Low support effort. Lib is 90% undocumented playwright internals. Playwright js frequently updated.
#elixirlang
Surprises:
1. High number of users. Metric skewed by few power users?
2. Low support effort. Lib is 90% undocumented playwright internals. Playwright js frequently updated.
#elixirlang
Reposted by Fredrik Teschke
Expert LS is out yall. #ElixirLang github.com/elixir-lang/...
GitHub - elixir-lang/expert: Official Elixir Language Server Protocol implementation
Official Elixir Language Server Protocol implementation - elixir-lang/expert
github.com
August 28, 2025 at 8:32 PM
Expert LS is out yall. #ElixirLang github.com/elixir-lang/...
🤯
git commit --fixup
git rebase -i --autosquash
git commit --fixup
git rebase -i --autosquash
August 29, 2025 at 6:47 AM
🤯
git commit --fixup
git rebase -i --autosquash
git commit --fixup
git rebase -i --autosquash
Local code review = more collaboration (everybody edits/shares/reviews)
This really resonates with me, I have often wished for that.
youtu.be/MUqvXHEjmus?...
This really resonates with me, I have often wished for that.
youtu.be/MUqvXHEjmus?...
August 28, 2025 at 1:32 PM
Local code review = more collaboration (everybody edits/shares/reviews)
This really resonates with me, I have often wished for that.
youtu.be/MUqvXHEjmus?...
This really resonates with me, I have often wished for that.
youtu.be/MUqvXHEjmus?...