Fredrik Teschke
@ftes.de
Elixir full-stack developer with that extra boost 🚀
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?...
LiveView colocated hooks:
Skip for now due to lack of tooling support?
1. Code highlighting
2. JS Intellisense (language server features)
3. Formatting
4. Unit testing
Any thoughts?
Some of mine in thread 👇
#elixirlang
Skip for now due to lack of tooling support?
1. Code highlighting
2. JS Intellisense (language server features)
3. Formatting
4. Unit testing
Any thoughts?
Some of mine in thread 👇
#elixirlang
August 27, 2025 at 9:10 AM
LiveView colocated hooks:
Skip for now due to lack of tooling support?
1. Code highlighting
2. JS Intellisense (language server features)
3. Formatting
4. Unit testing
Any thoughts?
Some of mine in thread 👇
#elixirlang
Skip for now due to lack of tooling support?
1. Code highlighting
2. JS Intellisense (language server features)
3. Formatting
4. Unit testing
Any thoughts?
Some of mine in thread 👇
#elixirlang
Can ExUnit.CaseTemplate `setup` order be influenced?
I'd like my CaseTemplate `setup` callback to receive context values from my use-ing Test `setup` callback.
Use case: Override Playwright browser options when opening new page.
github.com/ftes/phoenix...
#elixirlang
I'd like my CaseTemplate `setup` callback to receive context values from my use-ing Test `setup` callback.
Use case: Override Playwright browser options when opening new page.
github.com/ftes/phoenix...
#elixirlang
Allow passing custom browser context/page opts (e.g. http_credentials) by ftes · Pull Request #59 · ftes/phoenix_test_playwright
Closes #48
github.com
August 26, 2025 at 6:32 AM
Can ExUnit.CaseTemplate `setup` order be influenced?
I'd like my CaseTemplate `setup` callback to receive context values from my use-ing Test `setup` callback.
Use case: Override Playwright browser options when opening new page.
github.com/ftes/phoenix...
#elixirlang
I'd like my CaseTemplate `setup` callback to receive context values from my use-ing Test `setup` callback.
Use case: Override Playwright browser options when opening new page.
github.com/ftes/phoenix...
#elixirlang
Common phoenix pitfalls when upgrading to LiveView 1.1
Tests may break in several ways.
- HTML boolean attrs like 'checked' rendered differently
- stricter CSS selectors due to lazy_html
- phoenix_test needs fix #45 (unreleased)
#elixirlang
Tests may break in several ways.
- HTML boolean attrs like 'checked' rendered differently
- stricter CSS selectors due to lazy_html
- phoenix_test needs fix #45 (unreleased)
#elixirlang
August 25, 2025 at 1:38 PM
Common phoenix pitfalls when upgrading to LiveView 1.1
Tests may break in several ways.
- HTML boolean attrs like 'checked' rendered differently
- stricter CSS selectors due to lazy_html
- phoenix_test needs fix #45 (unreleased)
#elixirlang
Tests may break in several ways.
- HTML boolean attrs like 'checked' rendered differently
- stricter CSS selectors due to lazy_html
- phoenix_test needs fix #45 (unreleased)
#elixirlang
"Now you can use any [Tailwind combobox] in any project you're working on — no JavaScript framework required."
tailwindcss.com/plus/ui-bloc...
This is going to make LiveView even more fun.
I guess this makes waiting for vanilla-js headlessui obsolete.
#elixirlang
tailwindcss.com/plus/ui-bloc...
This is going to make LiveView even more fun.
I guess this makes waiting for vanilla-js headlessui obsolete.
#elixirlang
Tailwind Plus - Official Tailwind UI Components & Templates
Beautiful UI components and templates by the creators of Tailwind CSS.
tailwindcss.com
July 28, 2025 at 6:36 PM
"Now you can use any [Tailwind combobox] in any project you're working on — no JavaScript framework required."
tailwindcss.com/plus/ui-bloc...
This is going to make LiveView even more fun.
I guess this makes waiting for vanilla-js headlessui obsolete.
#elixirlang
tailwindcss.com/plus/ui-bloc...
This is going to make LiveView even more fun.
I guess this makes waiting for vanilla-js headlessui obsolete.
#elixirlang