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Chatto is now open source

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Re: Chatto is now open source

#291

Earlier quoted context omitted.

Personally I've always found it funny that the widely used work software is called Slack which is very close to slacking (not working hard enough).

That’s where the name comes from, no?

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Re: Chatto is now open source

#294

The killer feature of Discord for me is being able to jump between communities without logging in to each of them. Open source alternatives never provide that. Does this one? Matrix is the obvious exception but the UX has always been terrible for me. I don't need e2ee for group messages and it brings too much complexity with it.

> I don't need e2ee for group messages and it brings too much complexity with it. E2EE is not mandatory and public rooms don't usually use it.

You pay for most of the complexity whether you use the feature or not.

Re: Chatto is now open source

#295

The killer feature of Discord for me is being able to jump between communities without logging in to each of them. Open source alternatives never provide that. Does this one? Matrix is the obvious exception but the UX has always been terrible for me. I don't need e2ee for group messages and it brings too much complexity with it.

Each Chatto server by design is entirely isolated, including user accounts. But I'm aware that having to email-signup on every server you want to hang out in would eventually be too annoying. I'm exploring some lightweight identity federation ideas that I hope to ship with 0.5 where you can use your Chatto account on one server to log into another server (if it's configured to allow this.)

Then wouldn't servers need to trust each other? Otherwise I could use my server to log into any other server.

Re: Chatto is now open source

#296

The documentation looks very pleasing. But it doesn't seem to be free, too. Does anybody know with what framework it's made? WhatCMS says "Astro", but I guess this is too generic and there more involved.

This should be the source: https://github.com/chattocorp/chatto/tree/main/apps/docs-web...

It's Astro and Astro Starlight. I feel it looks very similar to other contemporary docs website generators.

Re: Chatto is now open source

#297
One of the reasons why legacy apps continue to live on (despite outliving their usefulness ) is third party tie-ins.

The reason most companies are reluctant to switch from slack is because they have external third parties i.e. their partners connected with external channels within slack. Changing their internal DM/IM system will remove their ability to communicate with their partners in the same system.

Perhaps a plugin where slack messages can be forwarded to Chatto and eventually bi-directional i.e. Chatto messages can be forwarded to Slack.

Re: Chatto is now open source

#298
post #13

Would English speakers pronounce this as "Chat-to"? To a Japanese person, this clearly sounds like "Cha-tto," which simply means "chat."

Linguist here. It would likely be pronounced with a flap/tap, i.e., it would rhyme with shadow

Let Chatto cast a shadow on your private communications!

The marketing practically writes itself.

Re: Chatto is now open source

#299
post #240

Earlier quoted context omitted.

Wow! I have a stupid question - as I understand NATS works very well as a “message” pipe/bus. Anyway to get Redis type cache functionality as well ? Is it something possible ?

JetStream (not NATS) has a built-in key/value store. Relevant thread (old, from 2023): https://github.com/nats-io/nats.go/discussions/1507 someone did some benchmarks in 2025: nats bench kv put --size="128" --msgs 1000000 --storage file 1m3s → Pub stats: 15,656 msgs/sec ~ 1.91 MB/sec nats bench kv get --size="128" --msgs 1000000 59s → Sub stats: 16,720 msgs/sec ~ 2.04 MB/sec I have personally not used this though.

Thank you! Jetstream looks useful. For a platform which is production our Redis costs are getting prohibitively high. I was on the look for alternatives and perhaps in the software reliability tool [0] I am buildin try out Jetstream.

[0] https://github.com/bobinson/vulture

Re: Chatto is now open source

#300
post #296

The documentation looks very pleasing. But it doesn't seem to be free, too. Does anybody know with what framework it's made? WhatCMS says "Astro", but I guess this is too generic and there more involved.

This should be the source: https://github.com/chattocorp/chatto/tree/main/apps/docs-web... It's Astro and Astro Starlight. I feel it looks very similar to other contemporary docs website generators.

Thank you! I especially like the subtle animated diagram here: https://docs.chatto.run/guides/deployment/docker-compose/#ar...
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