Notices by @reiver ⊼ (Charles) :batman: (reiver@mastodon.social)

Apparently there is another social-networking protocol (that is not ActivityPub) that uses ActivityStreams, named:

Distributed Social Networking Protocol (DSNP)

...

https://en.wikipedia.org/wiki/Distributed_Social_Networking_Protocol

https://dsnp.org/

https://web.archive.org/web/20130910101658/http://www.complang.org/pipermail/dsnp-interest/

#ActivityStreams #DistributedSocialNetworkingProtocol #DSNP

@evan

I am a long-time fan of content-addressing. And, I think it is important.

But, I think (in addition to that) we also need to think about social-technologies.

For example, how can we incentivize Fediverse users to save an re-share files, such as video files.

...

There were platforms from the DC++ and BitTorrent eras that I think did a good job of encouraging this (through the social-technologies they created).

P2P CDN for Low-Cost Video and File Delivery

3/

There are techniques for creating a CDN that can support a community while keeping costs down.

You can trace the history of these techniques back to at least the 1990s.

Broadly speaking, these techniques were use with:

BitTorrent, Private BitTorrent Trackers, and Direct Connect.

I think the Fediverse can and should learn from these techniques, and put them to use.

…

#FediDev #CDN #ContentDeliveryNetwork #ContentDistributionNetwork

P2P CDN for Low-Cost Video and File Delivery

2/

There are definitely affordable commercial choices for CDNs for smaller sites and home-labers.

But, if you are trying to build a community (with many, many users) — a CDN can become expensive. Even very expensive.

(Electronic Arts (EA) has a whole team that takes up half a floor whose job iis to negotiate pricing from the Akamai CDN company.)

…

#FediDev #CDN #ContentDeliveryNetwork #ContentDistributionNetwork

RE: https://mastodon.social/@reiver/116681762071911900

P2P CDN for Low-Cost Video and File Delivery

1/

A CDN is a service that stores copies of your website's files in many locations around the world so visitors can download them from a nearby server instead of one far away. This makes your website load faster and stay available even when lots of people are using it at the same time.

CDNs are not only important for Fediverse servers but they are important for the Web in general

…

#FediDev #CDN #ContentDeliveryNetwork #ContentDistributionNetwork

@steve

This may be relevant:

https://swicg.github.io/activitypub-api/basicprofile

#ActivityPubAPI

Stable Outbox Collection Pages

2/

Let's say a collection has 23 items, and each page 10 items in length.

That means you will have 2 pages with 10 items and 1 page with 3 items.

Should that page with 3 items be the 3 newest items or the 3 oldest items.

The choice affects caching and static site ease quite a bit.

Here is the answer...

#ActivityPub #ActivityStreams #FediDev

Stable Outbox Collection Pages

1/

ActivityPub uses collections for a number of things:

• followers
• following
• inbox
• outbox

And, rather than dump everything in the collection into a single document, ActivityPub paginates using collection pages.

That's great.

But, how you divide up a collection into pages matters and affects things. Such as: caching.

I'll explain.

#ActivityPub #ActivityStreams #FediDev

Stable Outbox Collection Pages

5/

To me,, having the newest page of the collection be varying length one feel like a better strategy.

#ActivityPub #ActivityStreams #FediDev

Stable Outbox Collection Pages

4/

BUT, if instead — if the page with 3 items contains the 3 newest items, then —

Only the newest page would have to be recached. I.e., only 1 page churns not all.

All the other collection pages stay as is, and any cached copies of them as still valid.

Etc.

#ActivityPub #ActivityStreams #FediDev

Stable Outbox Collection Pages

3/

If the page with 3 items contains the 3 oldest items, then —

Every time a new items is added to the collection, then every single collection page will change. I.e., they all churn.

Which means that all cached copies of any collection pages will be invalidated.

Which means a static site generator will have to regenerate all of them again.

Etc.

BUT, if instead —

#ActivityPub #ActivityStreams #FediDev

Be kind to open-source developers.

Behind most open-source projects is a person donating their time and energy to help others.

They are often working on these open-source projects after their day jobs, family obligations, and everything else life demands of them.

#OpenSource

@dansup

Is that the Granville Street Bridge?

@evan

Here is something related:

https://en.wikipedia.org/wiki/Community_structure

There is a stable algorithm to find them (community structure in graphs), too:

https://link.springer.com/chapter/10.1007/978-3-642-30287-9_10

(One of the authors of the paper (Massoud Seifi) has even worked on Fediverse software.)

@evan

"zoner" is a play on the host of FireSide Fedi — Anthony Zone.

Both his family-name ("Zone"), and his Fediverse handle "ozoned".

@evan

zoners

Osborne 1 (1981)

AFAIK, this was the first portable computer.

#osborne1 #VintageComputing

@ErikUden

Doesn't seem to do that for me.

"A new challenger appears!"

RE: https://bitsocial.net/

...

Memes aside, if you are a Fediverse developer, it can be useful to pay attention to what others are doing. Notice what works for them and what doesn't. What their trade-offs are. Etc. And, if there is anything we can learn from them.

#BitSocial #FediDev

On moving an actor's content.

1/

One of the things that comes up on the Fediverse from time to time — is the ability for people to move their accounts.

For example, someone started off at:

＠joeblow＠example.com

But, now wants to "move" to:

＠misterx＠host.example

There is a mechanism to do that.

That mechanism moves their followers, their followees, BUT —

It does NOT move their content over!

That is a problem. Could we address this‽

...

#ActivityPub #ActivityStreams #FediDev