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Michael Murphy (S76)

@ mmstick @lemmy.world

Posts
57
Comments
251
Joined
3 yr. ago

I'm a System76 engineer / Pop!_OS maintainer. I've been a Linux user since 2007; and Rust since 2015. I'm currently working on COSMIC-related projects.

  • COSMIC: The Road to Alpha

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  • That would compromise our vision of a GUI platform built from the ground up in Rust. It would also not be feasible to use Flutter for applet development. We can easily make modifications directly to iced for all the Wayland integrations that we need in COSMIC, as the iced code base is very lean, and written in Rust.

  • COSMIC: The Road to Alpha

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  • We are integrating AccessKit into libcosmic for accessibility support.

    If you want to develop applets and/or applications with libcosmic, you must do so with Rust. There are no plans to develop C bindings for libcosmic.

  • COSMIC: The Road to Alpha

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  • COSMIC is being written in libcosmic, which is based on iced.

  • In-progress COSMIC apps: terminal, file manager, text editor, and settings

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  • I don't think you can say that because we haven't published our design language yet. Only a handful of design mockups have been published so far. The screenshots here are not design mockups but a work in progress implementation. Hence the "In-progress" part of the title.

    Rounded corners are a user preference in the Appearance page in COSMIC Settings.

  • In-progress COSMIC apps: terminal, file manager, text editor, and settings

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  • Corner roundedness is personal preference in the Appearance page in COSMIC Settings. Similar to interface density.

  • COSMIC DE: The Road to Alpha

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  • It wouldn't be possible for us to build a platform toolkit, or the COSMIC platform itself, without a text editor or terminal. It would also be deeply embarrassing if we release our desktop without them. Imagine telling people they need to switch to a TTY or use a software center to install a plain text editor or terminal. It is thanks to the text editor project that we have first class text rendering across the Rust GUI ecosystem now. Without it, we wouldn't have been achieve proper bidrectional text rendering or ligatures. The text editor project also made the terminal possible, and now any application that we develop in the future can have proper text editing widgets and embedded terminals.

  • COSMIC: The Road to Alpha

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  • Random application segfaults on Arch

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  • Sounds like voltage droop and/or a motherboard with faulty automatic "training" settings. I don't recall if the Ryzen 3000 had custom PBO curves, but tweaking this can fix it. Upping LLC and the SOC and CPU voltage slightly alternatively could help. Though I've had my most stable overclock by disabling PBO entirely and using a manual CPU multiplier.

  • COSMIC: The Road to Alpha

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  • You can generate documentation by running cargo doc and browsing the generated web pages in target/doc. There are also examples in the examples directory of libcosmic, as well as a design demo example which is a WIP.

    libcosmic is an alternative toolkit for building desktop applications and layer shell applets. It wouldn't make much sense to build a toolkit only for ourselves. It's the best way to develop layer shell applets for COSMIC, and other Wayland compositors that support the layer shell protocol.

  • Random application segfaults on Arch

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  • It's difficult to say for sure with certainty what the issue is without trial and error. I would expect that the motherboard's manufacturer would make sure that their board can successfully pass all tests with the standard JEDEC spec for DDR4 (2133 MHz).

    Since you say that you've tried different RAM kits, another alternative could be the cleanliness of power from the power supply. Perhaps there is intermittent voltage droop, and you need to experiment with the Load Line Calibration settings to adjust for vdroop between idle and load. Disabling frequency boosting and manually setting the CPU frequency could help check if it's related to that. PBO curves might be undervolting too much while idle.

  • COSMIC: The Road to Alpha

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  • Iced is a lower level GUI library, similar to what GDK is to GTK. We built our own COSMIC-themed GUI toolkit around iced, which is called libcosmic. As we've gotten more and more widgets and application logic developed, actual application development with libcosmic is a breeze. Even if you do have to create a custom widget, it's much easier to creating custom widgets in GTK. We're able to develop much faster than we ever could with GTK now.

    Yew and Leptos aren't comparable since they're not native GUI toolkits. These are for web developers rather than application development. It wouldn't be possible to use this for developing layer shell applets for COSMIC, either.

  • In-progress COSMIC apps: terminal, file manager, text editor, and settings

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  • It's been explained 100 times ad nauseam over the last two years. Go read comments from previous months' updates if you want to catch up.

    As for cross-platform compatibility, this should not come as a surprise because everything is written in Rust, and the libraries we use are already cross-platform by default in most instances. Supporting multiple platforms takes almost zero effort on our part. Especially when we could design something from the ground up that's easy to adapt.

  • Random application segfaults on Arch

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  • Make sure you have the latest firmware for your motherboard. This sounds like unstable voltages for memory, or an overly-aggressive PBO curve. Did you try disabling the XMP profile on the RAM, disabling PBO, and upping the voltages (within safe limits) of the SOC, DDR, and VDDP? You might find some useful info here[0] or here[1] if you intend to run your memory at 3200 MHz.

  • COSMIC: The Road to Alpha

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  • If they support the wlr output configuration protocols, then yes it'll work fine. There are some more advanced features that we want that aren't supported by the protocol though, so we will likely develop some cosmic protocol extensions for those features.

  • Pop!_OS Cosmic Desktop Updates - Cosmic Terminal, Files, and More

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  • Let him do his thing and investigate Pop on your own.

  • COSMIC: The Road to Alpha

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  • Because that's not how software development works, and that's not how you make progress in the field. In order for our technical vision to be integrated with an existing desktop, such as GNOME, it would have required that they give us the reigns to their project to delete their entire codebase and rebuild it into exactly what you see today in COSMIC.

    As in life, sometimes you've got to demolish, pave, and build better foundations. There's a lot of cool technologies available to build a truly next-generation desktop experience in, but you're not going to get it through rigid bureaucracy and old tools. With COSMIC, we've got freedom to make decisions and build something truly unique, and we're using our talent to show you what we can do.

  • COSMIC: The Road to Alpha

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  • No, we have been making our own platform toolkit (libcosmic), which is built upon iced-rs. We are using this both for our wayland compositor applets, and our desktop applications.

  • Pop!_OS Cosmic Desktop Updates - Cosmic Terminal, Files, and More

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  • In-progress COSMIC apps: terminal, file manager, text editor, and settings

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  • Make sure to report issues on GitHub with details so we can investigate it when we have time.