JJCasswell
@jjcasswell.bsky.social
Data scientist, dipping my toes in the indie dev scene.
Feeling the flutter vibe? A one hour hackathon to vibe code a piano game in Flutter @flutterfriends.dev #FlutterVibesOnly
September 2, 2025 at 12:41 PM
Feeling the flutter vibe? A one hour hackathon to vibe code a piano game in Flutter @flutterfriends.dev #FlutterVibesOnly
First overseas software conference - the excellent @flutterfriends.dev Check out the amazing e-ink badge! Looking forward to the badge hack sessions.
September 1, 2025 at 10:01 AM
First overseas software conference - the excellent @flutterfriends.dev Check out the amazing e-ink badge! Looking forward to the badge hack sessions.
This is a new low @britishairwayteam.bsky.social - not letting us choose a seat at check-in? What does distinguish you from a budget airline these days? (It’s not price!)
August 29, 2025 at 9:21 PM
This is a new low @britishairwayteam.bsky.social - not letting us choose a seat at check-in? What does distinguish you from a budget airline these days? (It’s not price!)
Good use of AI here to fight drive offs. More people should look at cheapestpetrol.uk for a better deal!
'I'm using technology to fight against drive-off fuel thefts' www.bbc.com/news/article...
'I'm using technology to fight against drive-off fuel thefts' www.bbc.com/news/article...
London service station owners turn to tech as fuel theft rises
One Shell garage owners tells BBC London how he has slashed his fuel drive-offs by 80%.
www.bbc.com
August 27, 2025 at 11:56 AM
Good use of AI here to fight drive offs. More people should look at cheapestpetrol.uk for a better deal!
'I'm using technology to fight against drive-off fuel thefts' www.bbc.com/news/article...
'I'm using technology to fight against drive-off fuel thefts' www.bbc.com/news/article...
Reposted by JJCasswell
I need to borrow an electric van from basically anywhere in the U.K. tomorrow (Tuesday 26th) and return it Sept 2nd.
Big ask, but rental companies messed me around after my e-van repairs got delayed.
It’s for Zero Carbon Adventures and @protect.earth and I can pay a few hundred quid.
Big ask, but rental companies messed me around after my e-van repairs got delayed.
It’s for Zero Carbon Adventures and @protect.earth and I can pay a few hundred quid.
August 25, 2025 at 8:27 AM
I need to borrow an electric van from basically anywhere in the U.K. tomorrow (Tuesday 26th) and return it Sept 2nd.
Big ask, but rental companies messed me around after my e-van repairs got delayed.
It’s for Zero Carbon Adventures and @protect.earth and I can pay a few hundred quid.
Big ask, but rental companies messed me around after my e-van repairs got delayed.
It’s for Zero Carbon Adventures and @protect.earth and I can pay a few hundred quid.
A little Sunday afternoon project mapping the movement of the sun - totally overkill but fun nevertheless!
youtu.be/QbSEylQXLCc
youtu.be/QbSEylQXLCc
Visualising the Suns track in the sky using python and three.js
YouTube video by JC Tech 256
youtu.be
August 19, 2025 at 9:34 AM
A little Sunday afternoon project mapping the movement of the sun - totally overkill but fun nevertheless!
youtu.be/QbSEylQXLCc
youtu.be/QbSEylQXLCc
As always UAT is enlightening- getting my partner to test the scheduling app I created for her threw up a ton of issues and insights as she used it a different was to what I envisaged. Back to the desktop to make some changes!
August 15, 2025 at 2:07 PM
As always UAT is enlightening- getting my partner to test the scheduling app I created for her threw up a ton of issues and insights as she used it a different was to what I envisaged. Back to the desktop to make some changes!
Deploying a new project to dev today so my beta testers (ie friends and family) can get stuck in!
August 13, 2025 at 10:02 AM
Deploying a new project to dev today so my beta testers (ie friends and family) can get stuck in!
Great trip to the future of food exhibit at London’s science museum yesterday. Plent of food for thought (yes I went there) but my word it starts darkly before offering some hope!
www.sciencemuseum.org.uk/see-and-do/f...
www.sciencemuseum.org.uk/see-and-do/f...
Future of Food | Science Museum
A new, free exhibition about how food must change to protect the planet.
www.sciencemuseum.org.uk
August 6, 2025 at 3:27 PM
Great trip to the future of food exhibit at London’s science museum yesterday. Plent of food for thought (yes I went there) but my word it starts darkly before offering some hope!
www.sciencemuseum.org.uk/see-and-do/f...
www.sciencemuseum.org.uk/see-and-do/f...
Happy Yorkshire Day to those who celebrate and trouble at mill to those who don’t!
August 1, 2025 at 1:49 PM
Happy Yorkshire Day to those who celebrate and trouble at mill to those who don’t!
Using LLM agents and MCP to examine code - here’s an article I wrote about a demo of this.
medium.com/@j-casswell/...
medium.com/@j-casswell/...
Creating a standalone, tool-operating agent using MCP.
Creating an LLM agent to perform code reviews for critical data elements using Ollama and LlamaIndex.
medium.com
July 2, 2025 at 11:15 AM
Using LLM agents and MCP to examine code - here’s an article I wrote about a demo of this.
medium.com/@j-casswell/...
medium.com/@j-casswell/...
Nice little django trick I've just discovered - custom code to perform data clean up as part of a migration:
June 19, 2025 at 6:18 PM
Nice little django trick I've just discovered - custom code to perform data clean up as part of a migration:
This is a really scary article! I like the idea of having to supply your editing history though and the teacher who now has essays written in class gives me hope.
I talked to 15 teachers/professors about how AI and ChatGPT is ruining their lives:
www.404media.co/teachers-are...
www.404media.co/teachers-are...
Teachers Are Not OK
AI, ChatGPT, and LLMs "have absolutely blown up what I try to accomplish with my teaching."
www.404media.co
June 4, 2025 at 8:23 AM
This is a really scary article! I like the idea of having to supply your editing history though and the teacher who now has essays written in class gives me hope.
Been playing with the Open Recipe Format - puts recipes in a format readable by humans and machines. Then you can manipulate easily like this simple viewer that lets you scroll independently the ingredients and method!
May 29, 2025 at 9:31 AM
Been playing with the Open Recipe Format - puts recipes in a format readable by humans and machines. Then you can manipulate easily like this simple viewer that lets you scroll independently the ingredients and method!
Wrote an article following my experiments with federated learning using flower ai and scikit learn. Check it out!
j-casswell.medium.com/creating-a-w...
j-casswell.medium.com/creating-a-w...
Creating a worldwide machine learning model when global is not an option?
Can federated learning solve data sovereignty issues — a background and some demo results.
j-casswell.medium.com
May 6, 2025 at 11:45 AM
Wrote an article following my experiments with federated learning using flower ai and scikit learn. Check it out!
j-casswell.medium.com/creating-a-w...
j-casswell.medium.com/creating-a-w...
Been writing an article. Have had worse temporary workspaces.
May 2, 2025 at 1:42 PM
Been writing an article. Have had worse temporary workspaces.
At the Flower AI summit today learning about federated learning. Very interesting jumping into this specialised area (also a little confusing when it gets technical!)
March 27, 2025 at 2:02 PM
At the Flower AI summit today learning about federated learning. Very interesting jumping into this specialised area (also a little confusing when it gets technical!)
Another day another web fix. Today refactored cheapestpetrol.uk to remove the page footer.
CheapestPetrol.uk
cheapestpetrol.uk
March 19, 2025 at 5:19 PM
Another day another web fix. Today refactored cheapestpetrol.uk to remove the page footer.
Quick update to easycalcguru.com to make it easier to use on mobile screens. Now you can calculate your rice water or the booze in a cocktail - both of which I’ve used this week - more easily from your mobile.
easycalcguru.com
easycalcguru.com
March 17, 2025 at 8:34 PM
Quick update to easycalcguru.com to make it easier to use on mobile screens. Now you can calculate your rice water or the booze in a cocktail - both of which I’ve used this week - more easily from your mobile.
Just finished Severence series 1 and saw the Substance at the weekend - feels like we’re being spoilt with the sophisticated sci-fi!
March 3, 2025 at 9:45 PM
Just finished Severence series 1 and saw the Substance at the weekend - feels like we’re being spoilt with the sophisticated sci-fi!
Too ill to attend a mini hackathon yesterday I had my own at home. Got the basics working for a qr based freezer database. Thinking of calling it What’s in The Freezer or WTF for short.
February 11, 2025 at 1:41 PM
Too ill to attend a mini hackathon yesterday I had my own at home. Got the basics working for a qr based freezer database. Thinking of calling it What’s in The Freezer or WTF for short.
If like me you have too many repos across too many machines (I know is there such a thing?) then this little bash script will help to see where you haven’t synced.
February 8, 2025 at 12:59 PM
If like me you have too many repos across too many machines (I know is there such a thing?) then this little bash script will help to see where you haven’t synced.
