Cartesi Scalability on Linux and The CTSI Utility Token

As blockchain projects mature and our understanding of the technology progresses, it becomes ever more clear what challenges impede its mainstream adoption:

* Convenience — developing and using a blockchain application is still an overwhelming task, involving a very difficult learning curve and consequently significantly reducing general interest in the technology;

* Scalability — Blockchains need to perform as well as centralized technology in order to be able to compete with it.

Full Article: https://medium.com/cartesi/cartesi-network-and-ctsi-b9a5e206fedf

https://redd.it/ftykwg
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Deprecating support for the Linux kernel
https://guix.gnu.org/blog/2020/deprecating-support-for-the-linux-kernel/

https://redd.it/ftgjoa
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Chafa (gnome-terminal image support)
https://hpjansson.org/blag/2020/04/01/chafa-1-4-0-now-with-sixels/

https://redd.it/ftfrqz
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Commandline/sysadin course in r/linuxupskillchallange

This month-long challenge for anyone wanting to build Linux sysadmin skills is re-starting again this coming Monday.

"Daily lessons appear in the sub-reddit /r/linuxupskillchallenge - which is also be used for support/discussion. This is a 'rolling' course repeated each month. Does require some serious commitment, but if gaining/growing these skills was one of your New Years Resolutions, then you now have no excuse! "

There was a massive surge in subnoscriptions last month (600!), but the it's difficult to gauge how many really committed, and how many stuck through. Any feedback very welcome.

https://redd.it/fti5bl
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Monitor refresh rate.

I have a 75 Hz monitor, yet Linux (I use KDE and the "Kubuntu" distro) doesn't want to really cooperate.
What do I do?
Like, games will show 75 FPS. But I think that's fabricated because my Display Settings in System Settings seem to just default to "Auto" each time I look at them, despite being set to 75 each time I close my settings.

https://redd.it/fu249x
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Replace GRUB2 with systemd-boot on Ubuntu 18.04
https://blobfolio.com/2018/06/replace-grub2-with-systemd-boot-on-ubuntu-18-04/

https://redd.it/ftad0h
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Anythingsay - A huge repository of cowsay files. Like ponysay/beesay but for everything!
https://charc0al.github.io/cowsay-files/converter/examples.html

https://redd.it/ft2e1e
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Freeware, Free Software and the Corona Virus Crisis -- Choose your tools wisely!
https://fsfe.org/news/2020/news-20200330-01.html

https://redd.it/fu4dsq
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Updated visual guide to installing Arch Linux

I used VMs to experiment when I wanted to learn more about how Linux works and try to install Arch. However I recently went to throw together a quick system for work and I noticed the guides I had read are now out of date enough that they can't be used start to finish. I found some fixes and stashed them in a markdown file for my own reference, but then figured they might be helpful to someone else so I worked it into a usable guide. It also has some extra "stuff I wish I'd known" type content like adding users, desktop managers and starting services, etc. I've pushed it to [my github](https://github.com/sweeney-th/install-arch-on-vm/blob/master/InstallVM.md) in case it's of use to anyone.

ps - thanks to the mod who helped me find the right way to post this!

https://redd.it/ft1qde
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April 2020 Development Update | Krita
https://krita.org/en/item/april-development-update-2/

https://redd.it/fu5kka
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Bash beginners guide in ePub format

The *Bash beginners guide* by Machtelt Garrels in ePub 2.0 format.

This is the repo on ourproject \[[repo](https://ourproject.org/scm/browser.php?group_id=2831&extra=bash-bg)\].

This is the link for the direct download \[[download](http://epub-manuals.ourproject.org/blog/bash-beginners-guide/)\].

The opening of issues is welcome.

https://redd.it/fu6ect
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Zoom’s Encryption Is “Not Suited for Secrets” and Has Surprising Links To China, Researchers Discover
https://theintercept.com/2020/04/03/zooms-encryption-is-not-suited-for-secrets-and-has-surprising-links-to-china-researchers-discover/

https://redd.it/fu6wjl
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Thoughts on Zorin OS check connectivity [opt-out] ?

Zorin OS (15.2 core at least) has got a feature named "Check Connectivity" (similar to Ubuntu/Fedora's) which HTTP/GET "[connectivity.zorin-os.com](https://connectivity.zorin-os.com)" every 30mn. It's opt-out. Of course there are easier ways to check connectivity, like querying NTP servers for instance.

They're doing a home-calling type of heartbeat. Maybe the right name would have been "Inform every 30mn the Zorin company that my computer is online" ?

Although it might not transmit sensitive data (haven't checked the packets), i'm not keen on those opt-out type of stats, kindly presented under an innocent euphemism.

Any thoughts on that ? I haven't found pages discussing that URL anywhere on internet before, which explains my post.

https://redd.it/fu5ru5
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Linux filesystem encryption comparison: ext4 vs btrfs vs zfs vs luks vs gocryptfs
https://redd.it/fu7he5
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Greg KH AMA coming next week, write your questions now!

Hello everyone,

[Greg Kroah-Hartman](https://en.wikipedia.org/wiki/Greg_Kroah-Hartman) will be doing an AMA next week. We wanted to give you a heads up to write out some questions in advance and we highly encourage checking out the last AMA to see if anything is already answered:

https://www.reddit.com/r/linux/comments/2ny1lz/im_greg_kroahhartman_linux_kernel_developer_ama/

Please note - there will be a new thread posted by /u/gregkh mid next week so please remember to get your questions in there.

I've left this thread unlocked to help people form questions together, but may lock it as needed.

https://redd.it/fu9sv5
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Unix/Linux command references (credits: FOSSwire.com)
https://redd.it/fuac5b
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Weekend Fluff / Linux in the Wild Thread - April 03, 2020

Welcome to the weekend! This stickied thread is for you to post pictures of your ubuntu 2006 install disk, slackware floppies, on-topic memes or more.

When it's not the weekend, be sure to check out r/WildLinuxAppears or r/linuxmemes!

https://redd.it/fuc87o
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LXD 4.0 LTS has been released with tons of new features
https://discuss.linuxcontainers.org/t/lxd-4-0-lts-has-been-released/7231

https://redd.it/fub9q0
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Three Comics For Understanding Unix Shell
http://www.oilshell.org/blog/2020/04/comics.html

https://redd.it/fubz8n
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Better than Zoom: Try these free software tools for staying in touch - FSF
https://www.fsf.org/blogs/community/better-than-zoom-try-these-free-software-tools-for-staying-in-touch

https://redd.it/fuelpg
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This Month in Mutter & GNOME Shell | March 2020
https://blogs.gnome.org/shell-dev/2020/04/03/this-month-in-mutter-gnome-shell-march-2020/

https://redd.it/fue16r
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