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lcall

405 karma · joined October 1, 2015

Thoughtful feedback is appreciated, in general. My email address is found in the footers of these two sites:

https://www.lukecall.net -- a tech-simple site with many thoughts on many subjects important to me, very skimmable but no ambition in visual style; nothing for sale until I get healthy and then if you want to pay for software development/systems consulting. Suggestions/questions welcome.

https://www.onemodel.org aka OM: available, effective, and in daily use, but progress on some planned new features is slow until health improves. A highly efficient (desktop) knowledge manager, text UI, Free (AGPL), using Scala and PostgreSQL (working to move to Rust and maybe later sqlite). Something like an efficient combination of mindmap, zettelkasten and GTD in one, with much greater ambitions including for linking instances for collaboration; see site links to screen shots for some idea of how I organize/categorize things. Low-volume announcements email list available (under "community").

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lcall··on I'm worried it might get bad
Life has many stresses, but things can actually be OK with each of us, despite commotion and problems. In my church of 17.5 million members in most countries, we have made promises with God to help each other and we try to help others in need, in many nations ($1.5 billion last year and growing). That is far from the total level of need, but God has also promised to help us and guide us as individuals and families if we really strive to keep our promises and do our part; He has promised peace in this life and eternal life in the world to come. And there are programs for developing and serving in employment, education, resilience, service to community, etc. And very local congregation has a bishop (unpaid) with access to resources to help meet needs and achieve self-reliance.

More at my site (in profile; no sales and low stylistic ambition), if you click on "Things I want to say" (about 1/2-way down), then "On peace amid commotion" (also about 1/2-way down), then skim that page and click at least the last link. Then read the entire page and click the links that seem most interesting.). We really can be OK despite things. (Thoughtful comments appreciated with any downvotes.)

lcall··on Show HN: Sshsync – CLI tool to run shell commands across multiple remote servers
Ditto. I posted (here: https://news.ycombinator.com/item?id=42881123 ) about them and other options:

To send the same command to multiple servers, use pdsh: https://linux.die.net/man/1/pdsh

To collect all the results and show which ones are the same or different, use dshbak (i.e., "pdsh <parameters including servers>|dshbak"): https://linux.die.net/man/1/dshbak

Similar things, sometimes more convenient but less efficient for a large number of servers, are to use the konsole terminal program and link multiple window tabs together so the same typed command goes to all, and quickly view the results across the tabs; or to use tmux and send the same commands to multiple windows (possible useful "man tmux" page terms: link-window, pipe-pane, related things to those, activity, focus, hooks, control mode).

And others that I haven't used but which also look possibly interesting for platforms where pdsh and dshbak might not be available (like OpenBSD at least):

- https://github.com/duncs/clusterssh/wiki (available on OpenBSD as a package)

- https://www.gnu.org/software/parallel/ (also available as a package on OpenBSD 7.6: named "parallel-20221122"; might relate to "pdksh")

- Also clusterit.

lcall··on Ask HN: How do you store the knowledge gained in a day?
I use the knowledge organizer I wrote at https://onemodel.org [AGPL], and write things wherever they fit in the deeply nested, searchable outline. Maybe it's like my own, efficient, highly-interlinked zettlekasten.
lcall··on Ask HN: What books have been worth your time?
I have determined for myself that the book is what it says it is. Details at my web site (in profile), and in the last chapter of the book itself. Anyone can put it to the test and receive an answer to prayer as to its validity.

ps: The Church that Joseph Smith led now has 17.5 million members around the world and is a great thing in my life. My ancestors knew Joseph Smith and were convinced he was not a charlatan. They helped build schools and cities. Now there are programs like https://justserve.org to freely coordinate efforts between charitable organizations with volunteers in many locations; BYU Pathway Worldwide (https://en.wikipedia.org/wiki/BYU_Pathway_Worldwide), which provides English instruction and accredited higher education far less expensively than traditional universities for those who could never afford it otherwise; extensive worldwide humanitarian efforts; https://familysearch.org for free genealogy tools, etc, etc. One can be happy about all the good that is being done.

lcall··on WikiTree: The Free Family Tree
There is another called familysearch.org which is free and allows adding but not publicly viewing info on living persons. The site is backed by an institution with staying power, has many helpful resources for research, and also has a wiki-like approach to building a single family tree for humanity. (I used to work there.)
lcall··on Ask HN: What books have been worth your time?
And the Book of Mormon. They are amazing.

(Thoughtful comments appreciated with any downvotes. Thanks.)

lcall··on Ad-hoc multi-server management with pdsh and friends
Also clusterit.
lcall··on Ad-hoc multi-server management with pdsh and friends
The above links but clickable now are:

- pdsh: https://linux.die.net/man/1/pdsh

- dshbak: https://linux.die.net/man/1/dshbak

- clusterssh: https://github.com/duncs/clusterssh/wiki

- parallel: https://www.gnu.org/software/parallel/

lcall··on Long Fatigue: The exhaustion that lingers after an infection
The article mentions low-dose rapamycin (aka sirolimus). That has recently been helping me, with my Chronic Fatigue Syndrome (CFS; overlaps or may be the same as long covid) that I have had since 2006 after a cold from which I never felt like I recovered (fatigue). I have gone from averaging maybe 1-2 hours of slow desk work if I am careful, and few to no social activities, to being able to go to church again (once so far) and do 4-5 hours/day of slow desk work, for about a month now 5-6 days a week. I'm really hoping to be employable again in the future.

The Dr. prescribed it off-label (they are also doing a study and a doctor had a very positive personal recovery experience with it). My dose is 1mg ONCE per week, then two, then three, building up to 6mg ONCE per week.

I mention this in case it is helpful to anyone else.

lcall··on Ask HN: Aren't you afraid of a possible world conflict?
Times can be difficult but we can have peace, practical guidance, and help. Noah warned people, and prophets warn and guide today (the same God, had prophets then, has them now).

More at my web site (in profile, no sales and low stylistic ambition), if you click on "Things I want to say" (about 1/2-way down), then "On peace amid commotion" (also about 1/2-way down), then skim that page and click at least the last link. Then read the entire page and click the links that seem most interesting.

lcall··on I Stopped Using OpenBSD
Another recent discussion (fewer comments): https://news.ycombinator.com/item?id=42201302

Also FWIW, I use OpenBSD as my daily driver, and I like it especially due to the security (I separate user-level activities, including net browsing, by account), and have not had the crashing or filesystem issues, fortunately. Her points are probably valid though, as my demands of the system are less than hers.

lcall··on Unit tests as documentation
At least sometimes, it really helps for a test to say WHY it is done that way. I had a case where I needed to change some existing code, and all the unit tests passed but one. The author was unavailable. It was very unclear whether I should change the test. I asked around. I was about to commit the changes to the code and test when someone came back from vacation and helpfully explained. I hope I added a useful comment.
lcall··on Ask HN: What breakthrough helped you build and maintain better relationships?
And if disagreeing, one can always say "I guess we see it differently. Maybe different assumptions or priorities. Good food for thought..." and smile and be curious about their rationale without ever being angry.
lcall··on Ask HN: What breakthrough helped you build and maintain better relationships?
Maybe somewhat tangential, but for maintaining relationships (close or distant) in general, the best things for me (who am still learning) have been a study of the Bible and Book of Mormon, and some things they said in our church's General Conference, which I will try to roughly quote from memory:

"Never let a task to be accomplished be more important than a person to be loved."

"The primary feeling in any interaction should be love."

"Observe and serve."

This does not mean failure to speak only truth in kindness as appropriate, or to set boundaries when necessary. I think Jesus Christ's example of understanding, truth, and kindness are ideal for us all.

Also as some have hinted here, being a good listener, asking questions, caring about others' background and well-being in general, being humble, willing to share when appropriate, and looking for the good and things to appreciate in others, and ways to serve, can go a long way. Interesting volunteering opportunities (where you would meet people as a side-effect) might be found at https://justserve.org if available in your area.

lcall··on Ask HN: What is your opinion on Open BSD?
I agree with others that you are expected to read documentation and use it on supported hardware. I have been using it on my laptop for some time now, though I don't need bluetooth nor do I suspend/resume much, and I don't know about battery life. I guess I use it mostly like a desktop.

About the security, which is my main reason for using it: I like having to install the things I really want, which gives me a chance to consider the security implications of them, instead of having many things pre-installed and I don't know what the total risks are. And nothing else I know of has gone since ~1996 with only 2 of the worst kind of security holes (i.e., remote exploit of something I didn't even need, but was installed by default).

In the base install are many useful things (including a web server IIRC, though the port is not exposed by default), and those are audited and have that excellent track record.

Then when you install extra things, they are usually limited by what user they run as, and usually have pledge/unveil run (limiting access to predetermined/approved syscalls and parts of the file system) so they can't break other things if compromised.

I do change my default umask (/etc/profile, sourced by shell startup files for all users) to 0077, which means putting the pkg_add command inside a script ("pa") that first sets it back to 0022 temporarily.

Also, for finding packages to install, doing pkg_add pkglocate, then using pkglocate -i, or pkg_add portslist then just searching the whole list with things like less /usr/local/share/ports-INDEX or less /usr/local/share/sqlports-list can be useful. There are very many packages available (over 12k on the amd64 platform).

lcall··on Ask HN: What's the "best" book you've ever read?
Here are some translation recommendations (I haven't read them, but would add War and Peace, which I have read, and which is freely available on gutenberg.org):

10 of the best novels in translation into English

https://www.deseret.com/entertainment/2024/10/06/best-books-...

lcall··on Expect – Linux tool for automating interactive programs
Dejagnu, written in expect, is also useful for testing. I have used it in my TUI personal organizer project.

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

lcall··on What's your favorite RSS feed reader?
On Android, Handy News Reader from the f-droid.org app store works well, once I went through all the settings and customized it, and got used to it. Except now it doesn't auto-fetch (it used to) and I don't know if I did something wrong, but manually fetching new stories isn't bad. It is a local reader -- no account required, no server storage, but stores everything on the phone.

I've also used NewsBlur which I would probably like more if I paid. One thing about Handy News Reader is there is a way to see the URLs of existing feeds, which I have not found how to do in NewsBlur.

A previous discussion from 2020: https://news.ycombinator.com/item?id=24658424

And from 2022: https://news.ycombinator.com/item?id=34108413

I haven't tried any of the others in comments here, so can't make comparisons; that might be interesting.

lcall··on Aliasing Your Git Commands for Maximum Developer Efficiency
I do similarly but my favorite git log ("gl") variant (in a bash script rather than an alias) is:

set -eux

git log --notes --decorate=full --source --stat --summary -C -M --pretty=fuller $*|less

...so that I can see if there was any revision to a commit after it was first committed, which files were changed and how much, and pass extra parameters if needed.

lcall··on Why are religious teens happier than their secular peers?
Joseph Smith never claimed to be perfect, and notably said he was not, but that "there is no error in the revelations." I have learned for myself that the Book of Mormon is true (and amazing), and so can anyone who wants to test it for themselves. (More at my web site--in profile, nothing for sale, no stylistic ambition.)

(Smith's life is thoroughly, unflinchingly documented: https://www.josephsmithpapers.org/ ).

(Thoughtful comments appreciated with any downvotes.)

lcall··on Medical school will be created at BYU, church announces
Related link: https://www.thechurchnews.com/living-faith/2024/07/29/new-me...

Intermountain Health, mentioned in these articles, is the founder of Civica Rx, which is the nonprofit that makes pharmaceuticals that are otherwise hard to get, etc: https://en.wikipedia.org/wiki/Civica_Rx

lcall··on Ask HN: How can I find something worthwhile to do?
Doesn't it depend on the purpose of your life? I have written about this at my web site (in profile, nothing for sale, no stylistic ambition). You can email me if you can't find it in there. For me, it is to have joy, by glorifying God through learning and service to others. And he gives us all, in return. We all have to choose.

(I agree; it is an interesting challenge.)

(Thoughtful comments appreciated with any downvotes.)

lcall··on Ask HN: How can I find something worthwhile to do?
One place to find volunteer opportunities is at https://justserve.org , if available in your area. It is free and connects available volunteers with organizations who need the help.
lcall··on Ask HN: How do I balance all my 200 interests in life?
Doesn't it depend on the purpose of your life? I have written about this at my web site (in profile, nothing for sale, no stylistic ambition). You can email me if you can't find it in there.

For me, it is to have joy, by glorifying God through learning and service to others. And he gives us all, in return. We all have to choose.

(I agree; it is a hard problem.)

(Thoughtful comments appreciated with any downvotes.)

lcall··on What will humans do if technology solves everything?
Learn and serve others. Develop virtues, and skills, and grow, and become better, fulfilling one's potential.

Just learning math or musical improvisation can fill a lifetime. Etc.

(I thought a great challenge would be the sport of starting with an empty field, just the clothes one is wearing, and access to wikipedia, and see how quickly one can develop technologies from survival up to smart phones, while trading only with others similarly engaged.)

The article suggests these things. But, so much more could be said. I believe our spirits are children of God, with infinite potential, and much to learn...

lcall··on Guiding Principles for the Mormon Church's Use of AI
Thanks for your thoughtful comment. We believe the Church is led by Christ through his living prophets, who are not perfect, but whodefinitely seek his guidance for their decisions, many of which must be made unanimously by the 12 and the First Presidency. I believe it (or know it) because of the many reasons listed at my web site (in profile).
lcall··on Guiding Principles for the Mormon Church's Use of AI
Curiously, it is repeatable in my personal experience. I find everything goes better (and I mean everything), when I listen and don't stubborly do things my way. More at my web site (in profile, tech-simple, nothing for sale).
lcall··on Guiding Principles for the Mormon Church's Use of AI
Members are taught to save "for a rainy day" (and to avoid debt, obtain education, and to be good to everyone, starting at home). The Church as an institution also follows their own advice. They have so many money-consuming projects going on that if there were serious economic problems, these resources would help it continue those efforts instead of having to dramatically cut back (feeding, employing, accredited global online higher-ed and English instruction and support to those who could not otherwise afford it, building programs, extensive welfare and humanitarian programs, etc etc). More info at the Church's site or my own (in profile).
lcall··on Guiding Principles for the Mormon Church's Use of AI
Abusive is very far from my personal experience. It is the best influence in my and my extended family's life. Generally, it seems like those who are most happy and most educated are usually the most active. It takes a lot of work to build something that lasts across the generations. We are taught service to others, forgiveness, and kindness. It has brought me and my wife peace and a sense of security despite health and others of life's expected challenges.

There is more at my web site (in profile, tech-simple, nothing for sale).

lcall··on NIH Study Provides Long-Awaited Insight into Myalgic Encephalomyelitis/CFS
My doctor is involved in ME/CFS research and her office provides medical education etc etc. This is their response: https://batemanhornecenter.org/me-cfs-inpatient-study-findin...
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