VirtualTam's bookmarks

1. The AirGradient Builds Overview 2024-10-23

   tags: air, arduino, diy, electronics, pcb, sensor, smart-home

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   • airgradienthq/arduino
   • DIY Air Quality Sensor (2021-08-08, using revision 4)
   • Jeff Geerling - Your home's air could be making you sick. Fight back! (2021-09-08)
   • Monitoring my home's air quality (CO2, PM2.5, Temp/Humidity) with AirGradient's DIY sensor
   • Discussion on HackerNews
2. jjazzboss/JJazzLab-X: A complete Midi-based framework for automatic backing tracks generation. 2022-12-14

   tags: audio, improvisation, instrument/midi, jazz, programming/java

   [ permalink ]

   • https://www.jjazzlab.com/en/
3. Get your Minitel back, the COMPUTEL videotex BBS is back! | by Christian Quest | Medium 2022-06-26

   tags: apple, diy, forum, minitel

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   • https://cq94.medium.com/acc%C3%A9der-au-contenu-dun-backup-de-plus-de-30-ans-75837443d7b3
   • https://cq94.medium.com/computel-de-retour-1340d00ea79e (French version)
   • https://github.com/cquest/cristel
4. Taiga Agile | Agile project management platform 2021-01-21

   tags: agile, agile/kanban, agile/scrum, framework/angularjs, framework/django, programming/python

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   • https://github.com/taigaio
   • https://github.com/taigaio/taiga-back
5. Jenkins X: Easy CI/CD for Kubernetes - James Strachan, CloudBees 2018-05-08

   tags: continuous-integration, continuous-integration/continuous-delivery, continuous-integration/jenkins, linux/container/docker, linux/container/kubernetes

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   • https://medium.com/@jstrachan/want-automated-ci-cd-on-kubernetes-we-got-your-back-9d34ed8c82cd
   • https://jenkins-x.io/news/jenkins-x-does-kubecon/
   • https://jenkins-x.io/architecture/custom-resources/
6. Centos/RHEL 7 - Fix LVM boot issues after migration from ESXi to VirtualBox 2018-04-20

   tags: boot, bootloader/grub, filesystem, filesystem/lvm, fstab, linux, linux/centos, linux/kernel, linux/red-hat

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   Here are the steps I used to migrate a CentOS 7 VM from (presumably?) an ESXi server, to a local VirtualBox environment.

   The LVM volumes were not detected at boot, and after the boot timeout, the OS fell back to the Dracut emergency shell.

   • get a CentOS minimal installation CD
   • check the VM's resources and peripherals:
     • ensure there are no floppy drives (!)
     • setup CPU and RAM resources
     • check virtual drives
     • add an SCSI optical drive if needed
   • optional: convert the virtual drive images from VMDK to VDI
   • mount the CentOS installation disc
   • boot on the installation disc:
     • select "Troubleshooting", then "Rescue"
     • let the rescue utility detect filesystems and mountpoints
   • $ chroot to the detected environment
   • backup files:
     • /etc/fstab
     • /boot/grub/grub.cfg
   • under /boot, backup the initrd and initramfs for the current configuration (these will be overwritten)
   • compare the current /etc/fstab with the output of $ lsblk and $ blkid
   • if needed, manually edit /etc/fstab to use the appropriate block device UUIDs, identifiers and mountpoints
   • regenerate GRUB configuration:
     • $ grub2-mkconfig -o /boot/grub2/grub.cfg
   • if needed, reinstall GRUB:
     • $ grub-install /dev/sda
   • rebuild initrd:
     • $ mkinitrd --force /boot/<initrd_image> <kernel_version>
   • rebuild initramfs:
     • $ dracut --force <kernel_version>
   • exit the chroot
   • unmount the installation disc
   • reboot
   • optional but highly recommended: cross your fingers
   • ...
   • profit!
7. ltworf/funny-manpages: Funny unix manpages 2018-03-07

   tags: fun, linux, man, wtf

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   • https://www.reddit.com/r/linux/comments/81zopj/funnymanpages_are_back_in_debian/
8. Migrating a 130TB Cluster from Elasticsearch 2 to 5 in 20 Hours with 0 Downtime and a Rollback… 2018-01-31

   tags: data, database, distributed-system/cluster, index, observability/elastic, observability/elastic/elasticsearch, search

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   • https://thoughts.t37.net/how-we-reindexed-36-billions-documents-in-5-days-within-the-same-elasticsearch-cluster-cd9c054d1db8
   • https://thoughts.t37.net/how-we-upgraded-a-22tb-mysql-cluster-from-5-6-to-5-7-in-9-months-cc41b391895d
   • https://www.elastic.co/blog/hot-warm-architecture-in-elasticsearch-5-x
   • https://www.graylog.org/post/back-to-basics-using-a-hot-warm-elasticsearch-cluster
   • https://github.com/mraad/es-hot-warm
9. Bruford - Feels Good To Me + Back To The Beginning OGWT 1978 2018-01-22

   tags: bruford, fusion, holdsworth, jazz, live

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10. GRUB dual-boot considerations 2018-01-05

    tags: boot, bootloader/grub, linux, microsoft/windows

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    • https://wiki.archlinux.org/index.php/Dual_boot_with_Windows
    • https://askubuntu.com/questions/88384/how-can-i-repair-grub-how-to-get-ubuntu-back-after-installing-windows
    • https://www.eightforums.com/tutorials/29504-bios-mode-see-if-windows-boot-uefi-legacy-mode.html
11. What is back propagation in neural networks? 2017-08-22

    tags: machine-learning, neural-network, recurrent, synapse

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    • https://en.wikipedia.org/wiki/Backpropagation
    • https://www.quora.com/How-do-you-explain-back-propagation-algorithm-to-a-beginner-in-neural-network
    • https://stackoverflow.com/questions/38340791/guided-back-propagation-in-tensorflow#38341080
    • https://www.tensorflow.org/tutorials/recurrent
    • https://stackoverflow.com/questions/40868896/backpropagation-through-time-bptt-of-lstm
12. Interfacing with C/C++ Libraries — The Hitchhiker's Guide to Python 2017-04-26

    tags: cython, programming/api, programming/c, programming/c++, programming/library, programming/python, shared

    [ permalink ]

    • https://docs.python.org/3/library/ctypes.html

    • https://cffi.readthedocs.io/en/latest/index.html

    • http://www.swig.org/

    • http://stackoverflow.com/questions/1942298/wrapping-a-c-library-in-python-c-cython-or-ctypes

    • http://stackoverflow.com/questions/135834/python-swig-vs-ctypes

    • http://stackoverflow.com/questions/4351721/python-ctypes-passing-a-struct-to-a-function-as-a-pointer-to-get-back-data

13. Scaling Git (and some back story) | Brian Harry's blog 2017-03-27

    tags: file, microsoft, source-code-management/git, system, virtual

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    • https://blogs.msdn.microsoft.com/visualstudioalm/2017/02/03/announcing-gvfs-git-virtual-file-system/
    • https://github.com/Microsoft/gvfs
    • https://github.com/Microsoft/git
14. Ansible: Reboot a server and wait for it to come back 2017-01-16

    tags: asynchronous, configuration-management/ansible, host, linux, reboot

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    • https://docs.ansible.com/ansible/wait_for_module.html
    • https://stackoverflow.com/questions/30187705/it-is-possible-to-async-a-local-action-in-ansible
    • https://superuser.com/questions/1106349/cant-make-ansible-to-wait-for-a-server-to-reboot-and-continue-playbook-to-work
15. Do we have a back-up in the audience? | CommitStrip 2016-09-06

    tags: backup, cron, linux, periodic, schedule, task

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16. The lava basket 2015-09-11

    tags: basket, iceland, lava, volcano, water

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    Go back to it!

17. TempleOS: The Temple Operating System 2014-11-29

    tags: commodore, god, operating-system, temple, wtf

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    MultiDeskOS is back!

    via http://www.techrepublic.com/blog/software-engineer/templeos-an-educational-tool-for-programming-experiments/ via http://korben.info/templeos.html

18. Casualties of Cool: Casualties of Cool on PledgeMusic 2014-03-27

    tags: back, cool, crowdfunded, devin, pledge, stage, townsend

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19. The World's End - Teaser Trailer - YouTube 2013-08-19

    tags: film, frost, movie, pegg

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    SImon Pegg & Nick Frost are back in town!

20. ABC of Music – 26 genres musicaux dans une seule chanson | Ufunk.net 2013-07-29

    tags: fluffy, pink, unicorn

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    Pink Fluffy Unicorns are back!