I'm a newbie to ActivityPub so please be patient with me.

All intros into ActivityPub speak about how a user of a server A subscribes to a specific community from server B, and then server A will be informed about changes in that community.

But on lemmy it's possible to look at the posts of all communities. For a single concrete community it would be relatively easy: server A gets the request to serve the top post of a community on server B, so A simple asks B for the posts.

But there is also the "posts from all communities" tab on the lemmy front page. This opens questions:

Does each lemmy instance has a full copy of all posts of all communities? If this is true: How are new Instances discovered? Is each Instance distributing all updates to all other Instances?

If each lemmy instance has only a partial dataset (this theory is backed by [1] "Only if a least one user on your instance subscribes to the remote community, will the community send updates to your instance.") then how is the "all posts" view composed? is it in reality not "all" but only "all posts that at least one user of this instance is subscribed to"?

If this is the case: what happens if a bad actor subscribes to all communities of all servers? Is there a maximum number of subscriptions per user?

The source of those questions is, that I'm looking for a way to subscribe to all events of all lemmy instances, to be able to build statistics about upvotes, new posts, comments etc. There seems to be a similar API endpoint for mastadon [2] but nothing for lemmy?!

cross-posted from: https://discuss.tchncs.de/post/22702031

I went to my local library today and noticed there's a lot of networking, cybersecurity, tcp/ip books from the early 2000s. Now, I want more modern versions of these types of handbooks. Does anyone know any good modern handbooks that deal with networking or network security standards?

Thanks :)

I am a fresh software engineering graduate and I am looking for something to improve my problem solving skills, while I did learn about basic algorithms and data structures, I feel like I could learn further more, I know about big O, fast sorting algorithms, dynamic programming, backtracking, binary trees (Although I do not think I know everything about them), I also know about low level memory concepts.

I am sure I forgot to mention some of the stuff I also know about, but I hope the ones I mentioned give a good insights on where I should move onto next.

From the repo

A (somewhat opinionated) list of SQL tips and tricks that I've picked up over the years in my job as a data analyst.

Git cheat sheets are a dime-a-dozen but I think this one is awfully concise for its scope.

• Visually covers branching (WITH the commands -- rebasing the current branch can be confusing for the unfamiliar)
• Covers reflog
• Literally almost identical to how I use git (most sheets are either Too Much or Too Little)

This looks pretty cool for quick deployment of hobby projects. Production grade and easy to use is always a win in my book.

You can now inspect the DOM tree, view styles, evaluate JavaScript, and read console messages in Servo!

Hey all, I'm still a junior dev with years of experience in IT. One of the things I've noticed since making the switch is that (at least where I work) documentation is inconsistent.

Things I encounter include incomplete documentation, outdated documentation and written process details that have assumed knowledge which makes it difficult for junior Devs to pick up.

I've had a search and a lot of what is out there talks more about product and how to document that SDLC rather than best practice in writing and organising documents against the actual software engineering and its processes.

Does anyone have any good sources or suggestions on how I could look to try and begin to improve documentation within my team?

I figured out how to remove most of the safeguards from some AI models. I don't feel comfortable sharing that information with anyone. I have come across a few layers of obfuscation to make this type of alteration more difficult to find and sort out. This caused me to realize, a lot of you are likely faced with similar dilemmas of responsibility, gatekeeping, and manipulating others for ethical reasons. How do you feel about this?

The really interesting part is IMO this one:

10 Chrome extensions that can make you 10x developer

Have you performed simple arithmetic operations like 0.1 + 0.2? You might have gotten something strange: 0.1 + 0.2 = 0.30000000000000004.

Sorry for the somewhat noob question, but how do you pick a library for making a GUI for your apps? My background is in physics, so most of my programming is perfectly find with a CLI that outputs a graph as a ps file or some csv. I am looking to learn about making some neat little GUIs. I was thinking it would be a good idea to try and build my GUI out of the browser so that my app can be as portable as possible, but does this mean it has to be in Javascript or can the backend be done in anything else?

I am not really sure what I am asking, but wanted to get a feel for how people approach front ends.

Thanks :)

cross-posted from: https://lemmy.world/post/19949534

Interesting distribution of OSes from Stack Overflow.

https://positive-intentions.com/blog/dim-functional-webcomponents/

im investigating an idea i have about functional webcomponents after some experience with Lit.

Lit is a nice lightweight UI framework, but i didnt like that it was using class-based components.

Vue has a nice approach but i like working with the syntax that React used and i wondered if with webcomponents i could create a functional UI framework that didnt need to be transpiled.

i think the article is already quite long, so i think i will create a separate one as a tutorial for it.

note: im not trying to push "yet another ui framework", this is an investigation to see what is possible. this article is intended as educational.

Hello! I’m looking for book recommendations for learning programming fundamentals.

To be clear, I’m not necessarily looking for a book on learning language(s), but rather, programming, theory I guess you might call it?

For example, I’ve been playing around a lot in my terminal writing bash scripts, and I just implemented my first function. Another example, I know the phrase “Object Oriented programming”, but have no idea what it means.

I learn well by doing, and I’ve learned a lot just writing scripts and reading about bash scripting, but I also realize there’s a lot about programming at a higher level that I know nothing about.

For the last 5(?) years or so I have been using GitKraken as my daily git driver for a while. I use it at my job mostly and love the functionality. I still use git via command line but jumping into git bash is nice no matter what os I am currently using.

I mainly use it:

1. To see what branches have been modified (same as git tree but updates itself).
2. Hooks into other git hosting like codeberg/gitea/forgeo without any real work. Login is also super easy and built in. Oauth is built in.
3. Git amend is a one click interface.

There is other niceties like issue tracking, easy auto-creation of branches, etc... that I personally don't use all that much, but I can see the appeal.

The only real issue is the price. It used to be 30$ a year but now it's over 100+. I would happily pay 30 a year or pay one time for a license...but over 100 is too much in my opinion. I may go back to using all command line if the price keeps going up.

Is there any open source tools that do something similar it's the same look/feel?