ap-andersson
There are a bunch of different protocols used to exchange scheduled and live transit information out there. And there are also a lot of different companies actually operating the vehicles (Transport Authorities). Sometimes several within one large city. But even if they have different systems underneath often they expose one of the popular protocols. Often there are even rules/law about certain protocols that you HAVE to support.
In USA that is mostly GTFS and GFTS-RT. I dod not think its a law but something about what you have to do to get funds maybe? I'm in Europe so my memory is foggy.
In EU I believe its NeTEx and SIRI. And every member nation needs a national hub where all transport authorities shares its data openly.
GTFS + GTFS-RT is very popular among consumer apps since its both pretty simple and pull-based. Static data is in CSV-files in a ZIP-file and the realtime data comes via Protobuf. If you check sources on the page this post is about you will se many GTFS sources. Ofc even transit systems built for the european standards can expose GTFS via a translation layer to support a broader range of consumers easily.
When it comes to signs at bus-stops there are those that are fed with this kind of data and can show both timetable data and realtime data based on the vehicles position. Here those signs are everywhere (Sweden) and I know there are plenty in the rest of Europe aswell. Outside of that I don't know if they are used as much.
Also if you, like me, wanted to blame or view history for specific files there does not seem to be a way by clicking in the GUI to achieve it. But by using Ctrl+P you get the command search and can search for "Blame" or "File history".
There is a good community out there on github and discord that have flight tracking as a hobby. In addition to ADS-B there is also voice radio transmissions from aircraft (airband) and text messages (ACARS) etc. If you get hooked there is lots of different things to tinker with.
- Hacki for Hacker News
- Immich
- Organic Maps
- Synchting-Fork
- VLC
- Voice Audiobook Player
There could be some improvements on the process of adding an app though. I recently made a very small app for myself that I thought "maybe a couple of people would find this useful, I should add it to F-Droid".
I started by reading their docs on how to add a new app. I created an account on gitlab, forked their repo and added my app. Their pipeline failed without telling me why. After reading and re-reading everything a bunch of times I had to give up and look for help. The instructions said to fix all pipeline problems before creating a merge request.
So I go to the contact page where there are a bunch of options. I chose IRC and join. Ask for help. No answer or any message sent in the channel for the next 24 hours. At this point I am getting a bit irritated and are thinking about truly giving up. Then eventually someone answers in the channel and says "create a merge request and someone will help you". Which is what the docs said NOT to do. Fine. Ok. I will create it.
I go to Gitlab and chose the right template for the merge request. And now I get a whole bunch of new instructions and questions that I have to answer that the docs never mentioned. And it even mentions in that template that I should TRY to fix pipeline problems, or someone will help me (still going against official docs on their site). Since there was a bunch of questions I would have to look up to properly answer I did not have the time to do it right away... And I still have not done it. Its on a todo-list.
tl;dr: F-Droid works okey but the whole process of submitting a new app for someone that has not gone through it before could be made way better with some updated and unified instructions.
Also sometimes when sending specific tabs to my tablet or phone on android there is no notification, even if the app is open. Then I have to open the sync settings and manually press "Sync now" to trigger the notifications.
There is an extension that lets you save and sync either all tabs or a certain window and restore wherever. Not exactly what you are looking for I think, but its very useful for me.
I believe that Google had something similar back in the day as an extension to Chrome but removed it.
Great when I am troubleshooting something at work and when done still want the 20+ pages saved for later reference but not open. Or when I am planning for the weekend or researching a product at work during lunch and want to open a bunch of tabs at home later.
Overall that has been my biggest problem with traefik. Its awesome when it works, but when it does not I always seem to have problems troubleshooting and/or finding the information I need in the docs.
At work we will start using Traefik in prod towards the end of the year. I hope Traefik and I will become better friends before that :)
Still, these problems are so small compared to the value I get out of my PiHoles. Blocking ads for years on end while having troubles maybe 3-4 times in total. All the other time it just works.
The electricity works the same. One company owned by the city builds the electricity infrastructure. Then you pick whatever company you want to buy the electricity from.
I can pick between 10+ companies for Internet and many more than that for electricity in my town of around 60k residents.
Works fine as long as the company that takes care of that part does its job. You do put all trust in that one company to not be a douchebag. But seems to work here. Does of course not mean that it will work everywhere.
edit: Seems to work in some parts of the US aswell: https://www.fiercetelecom.com/broadband/open-infra-inc-got-i...
https://techblog.comsoc.org/2021/10/19/open-access-fiber-net...
An old PDF with some interesting facts, even if they are outdates by now: https://www.ssnf.org/globalassets/in-english/facts-and-stati...
Quite easy for me to setup, even though its my first NAS that I built myself and first time using ZFS. Very surprised that LTT effed that up to be honest.
Here's also a blog post related to the topic: https://engineering.atspotify.com/2021/08/04/four-lessons-we...
First of all, even if municipal broadband in different forms are very common here in Sweden, its not the only option. There are some areas of cities or certain estate owners that have deals with ISPs where they install the fiber and have exclusive right to sell broadband services. This can happen in cities with municipal broadband, so different areas of a city can have different providers.
The most common form of municipal broadband here is that the company that manages the water and electricity in the city (a company owned by the city but are run to make a profit) also installs fiber cables (is a network operator). They are going to dig up streets anyway, right? I have never seen a fiber cable above ground in my life here. They manage the cables and install switches etc to get the signal from the customers home to a central location in the city where it can be handed over to the ISPs. The company is not an ISP and does not sell any services in the network, but they allow any ISP that want to sell services with their infrastructure to do so. More and more this is done by standardized APIs (since one ISP can sell services within many different fiber networks), but also more manually with web portals for smaller companies or for troubleshooting etc. The ISP usually pays the network operator for number of subscriptions and/or changes done (connections/disconnections etc). The ISP can then sell services to customers and compete with the others both on price but also on how good their support, bundles etc are. That means that in a medium sized city (for Sweden at least... ~150k residents in my hometowns municipality) there can be up to 20 different ISPs that you can choose between and compare in a portal. All with the same cables and one ethernet jack in the apartments (or a fiber box in houses). Any ISP can deliver the service within a few minutes. So while the municipality has a hand in the fiber market they are not a competitor to the private companies, they simply enable the ISPs to compete in an open market to the benefit to the customers. The same model is used for electricity aswell. One fee goes to the municipal company that manages the physical infrastrcuture and the electricity meters while the cost of the actual electricity used go to the private company you have a contract with. This is the Open Acces Network model and is very common here in Sweden. There are also open networks operated by private companies. For example both Telia (which is both a network operator and a big ISP, previously state owned now privateized) and Telenor (the same deal but from Norway) operate both open networks and "closed" networks (where they have a monopoly).
There is also another, less common, model where the municipality has created a separate company that places physical fiber cables under the streets but does not offer an active network (dark fiber). This model is used by Stokab in Stockholm and was in part created to prevent too many distruptions by private companies constantly digging up the streets. Then all ISPs can rent fiber on equal terms.
tl;dr: Fiber cables are in many places in Sweden handled like a utility and private ISPs can all use them to sell their services to customers on equal terms which create competition that is great for the end user.