2024-04: got two backpacks "for free" with the Lenovo reward points from buying the Lenovo ThinkPad P14s gen4 amd, not bad, that was already cheap and now I got some extra swag:The sport backpack has a fatal flaw: no strap to hold laptop in place, wo it just tumbles back and forth as you walk.
- Lenovo Select Targus 16" Sport Backpack: www.lenovo.com/gb/en/p/accessories-and-software/cases-and-bags/backpacks/gx41l44751
- Lenovo Select Targus 16" Mobile Elite Backpack: www.lenovo.com/gb/en/p/accessories-and-software/cases-and-bags/backpacks/gx41l44752. Measured weight: 1070 g
For sizing see also: Ciro Santilli's body.
Bought 2021-11, light brown, size EUR 44.5, 190$, waterproof: www.timberland.co.uk/shop/en/tbl-uk/larchmont-chukka-for-men-in-brown-a12es210
Bought 2021-11, grey, size EUR 44.5, 80$ (later found cheaper online): www.sportsdirect.com/nike-run-swift-2-running-shoes-mens-121052
Ciro Santilli's hardware 2017-04 Nike Flex Experience RN 6 Grey running shoes by 
Ciro Santilli 37 Updated 2025-07-16
Ciro Santilli 37 Updated 2025-07-16- Ergobaby Omni Four Position Baby carrier. TODO manual:
- possibly:
- another model, omni 360:
- TRIPP TRAPP Beech, serial 72666145 purchase 30/05/2023 bought from: www.bellababy.co.uk/
- TRIPP TRAPP Newborn set, serial 101BB1280664, purchase 30/05/2023 bought from: www.bellababy.co.uk/
- Silver Cross Dune:
- Silver Cross Balance I-size car seat: www.silvercrossbaby.com/products/balance-i-size-almond
- Chicco Next2Me Magic2 crib, or something similar. Given to us without manual so not 100% sure. www.chicco.co.uk/products/8058664145423.chicco-next2me-magic2-co-sleeping-crib.html Manual: www.manualslib.com/products/Chicco-Next-2-Me-Magic-11096854.html
All with olive oil and salt mixed up before roasting.
2021-04-05 180C:
2021-02-06 180C:
2021-01-04:
2020-11-21:
- mixed nuts: 180C, 10 minutes, did not reach the point. Then 7 more minutes on 190C: pecans completely burned out
- almonds: 190C, about 25 minutes, opened several times, in the end had a slight burnt taste, but did not get black, just darker brown. Not as crispy as the ones we buy roasted, but pretty good
- pecans: 180C, 13 minutes, opened 3 times to stir, became great
Previously, updates were being done with more focus to sponsors in the format of the child sections to this section. That format is now retired in favor of the more direct Section "Updates" format.
This is a major feature: we have now started to inject the following buttons next to every single pre-rendered header:
This crucial feature makes it clear to every new user that every single header has its own separate metadata, which is a crucial idea of the website.
Screenshot showing metadata next to each header
. The page is: ourbigbook.com/donald-trump/chemistry. Note how even the subheaders "Chemical element" and "Hydrogen" show the metadata.Limited the number of articles, and the size of article bodies. This, together with the reCAPTCHA setup from Email verification and reCAPTCHA signup protection should prevent the most basic types of denial-of-service attacks by filling up our database.
The limits can be increased by admin users from the web UI, and will be done generously when it is evident that it is not a DoS attack. Admin users are also a recently added feature.
I guess ended up doing all the "how things should look like" features because they clarify what the website is supposed to do, and I already have my own content to bring it alive via
ourbigbook --web upload.But now I honestly feel that all the major elements of "how things should look like" have fallen into place.
I was really impressed by Trillium Notes. I should have checked it long ago. The UI is amazing, and being all Js-based, could potentially be reused for our purposes. The project itself is a single-person/full trust notetaking only for now however, so not a direct replacement to OurBigBook.
Ciro's Edict #7 Email verification and reCAPTCHA signup protection by Ciro Santilli 37 Updated 2025-07-16
Ciro Santilli 37 Updated 2025-07-16Added this basic but fundamental protection layer to the website.
The email setup will of course be reused when notifications are eventually implemented.
Pinned article: Introduction to the OurBigBook Project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 3. Visual Studio Code extension installation.
Figure 4. Visual Studio Code extension tree navigation.
Figure 5. Web editor. You can also edit articles on the Web editor without installing anything locally.Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.Video 4. OurBigBook Visual Studio Code extension editing and navigation demo. Source. 
- Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact