236 links
  • Zertrin's links
  • Home
  • Login
  • RSS Feed
  • Tag cloud
  • Picture wall
  • Daily
Links per page: 20 50 100
◄Older
page 1 / 5
  • Online communities with free online services
    https://www.4d2.org/
    https://envs.net/
    Mon Feb 17 02:11:54 2025 - permalink -
    - https://shaarli.zertrin.org/?5SbCww
    free online opensource privacy services
  • Cryptpad instances
    https://pad.4d2.org/index.html
    https://cryptpad.malacher.fr/index.html
    Mon Feb 17 02:07:00 2025 - permalink -
    - https://cryptpad.org/instances/
    encryption end-to-end privacy services
  • Calculating Empires
    A Genealogy of Technology and Power Since 1500
    Sun Aug 4 16:33:01 2024 - permalink -
    - https://calculatingempires.net/
    history technology time visualisation
  • Falsehoods programmers believe about undefined behavior
    Sun Aug 4 02:21:26 2024 - permalink -
    - https://predr.ag/blog/falsehoods-programmers-believe-about-undefined-behavior/
    c++ code compiler dev programming
  • rr: lightweight recording & deterministic debugging
    rr aspires to be your primary C/C++ debugging tool for Linux, replacing — well, enhancing — gdb. You record a failure once, then debug the recording, deterministically, as many times as you want. The same execution is replayed every time.

    rr also provides efficient reverse execution under gdb. Set breakpoints and data watchpoints and quickly reverse-execute to where they were hit.
    Sun Aug 4 01:31:37 2024 - permalink -
    - https://rr-project.org/
    c++ debug dev programming tool
  • How to build highly-debuggable C++ binaries
    Tue Jul 30 02:15:53 2024 - permalink -
    - https://dhashe.com/how-to-build-highly-debuggable-c-binaries.html
    c++ debug programming tips
  • Carto GRAOU
    Carte interactive ferroviaire France en temps réel.
    Tue Mar 12 14:02:44 2024 - permalink -
    - https://carto.graou.info/
    carte cartographie france interactive map train
  • WizTree - The Fastest Disk Space Analyzer
    Wed Feb 7 02:04:49 2024 - permalink -
    - https://diskanalyzer.com/
    analysis filesystem free software windows
  • PairDrop | Transfer Files Cross-Platform. No Setup, No Signup.
    Alternative to AirDrop that works on all platforms.

    - File Sharing on your local network
        - Send images, documents or text via peer to peer connection to devices on the same local network.
    - Internet Transfers
        - Join temporary public rooms to transfer files easily over the internet!
    - Web-Application
        - As it is web based, it runs on all devices.
    Tue Jan 30 18:12:17 2024 - permalink -
    - https://pairdrop.net/
    file p2p transfer
  • WinPython
    WinPython is a free open-source portable distribution of the Python programming language for Windows 8/10 and scientific and educational usage.

    It is a full-featured Python-based scientific environment:

        - Designed for scientists, data-scientists, and education (thanks to NumPy, SciPy, Sympy, Matplotlib, Pandas, pyqtgraph, etc.):
            - interactive data processing and visualization using Python with Spyder and Jupyter/IPython, Pyzo, IDLEX or IDLE
            - fully integrated Cython and Numba! See included example
            - connectors (cffi, odbc, rpy2, scilab2py, requests, ...) for advanced users
        - Portable:
            - Runs out of the box(*) on any Windows 8+ with 2GB Ram (Jupyter Notebook will require a recent browser)
            - The WinPython folder can be moved to any location (**) (local, network, USB drive) with most of the application settings
        - Flexible:
            - You can install as many WinPython distributions as you want on the same machine: each one is isolated and self-consistent
            - These installations can be of different versions of Python (3.7/3.8/3.9...)
        - Customizable:
            - The integrated WinPython Package Manager (WPPM) helps installing, uninstalling or upgrading Python packages
            - It's also possible to install or upgrade packages using pip from the WinPython command prompt
            - A configuration file allows you to set environment variables at runtime

    WinPython is something different from other Python Distributions (see historic motivation and concept):

        - non-invasive: WinPython lives entirely in its own directory, without any OS installation
        - customizable: add your missing packages, zip the WinPython directory and give it to your students
        - do your own version: a winpython-creator kit is made available for you
    Fri Jan 19 18:04:33 2024 - permalink -
    - https://winpython.github.io/
    install jupyter portable python windows
  • SQLite, VACUUM, and auto_vacuum | Jim Nelson + Yorba Foundation archives
    Sun Jan 14 05:43:49 2024 - permalink -
    - https://blogs.gnome.org/jnelson/2015/01/06/sqlite-vacuum-and-auto_vacuum/
    blog sql sqlite
  • Android games - No-Bullshit Games
    Tired of crappy mobile games full of ads, or semi-good games that try to squeeze as much money as possible out of you in the form of in-app purchases?

    Lucky for, you No-Bullshit Games is here to help you discover good, non-annoying, enjoyable games.
    Wed Dec 6 21:59:30 2023 - permalink -
    - https://nobsgames.stavros.io/android/
    android free games list
  • Rewriting wipEout
    The source code for the classic PSX launch title wipEout was leaked in 2022. A few month ago I finally sat down to take a look at it. The result is a (nearly) complete rewrite that compiles to Windows, Linux, macOS and WASM.
    Tue Aug 29 12:27:47 2023 - permalink -
    - https://phoboslab.org/log/2023/08/rewriting-wipeout
    blog games programming web
  • Home, Not So Sweet Home
    This post is a detailed discussion into user profiles, their directories, and how they are—to put it bluntly—in total disarray on Windows and Linux (I haven't used a Mac in ages, but I assume the situation is very similar there, too). Applications treat the user profile as a dumping ground, and any user with a reasonably wide list of installed software will find their user profile very difficult to traverse after some time in use. There are platform conventions and attempts to standardise things on more open-source platforms, but a lot of developers resolutely refuse to change the behaviour of their software for a variety of reasons (some less valid than others).

    The first part is a deep dive into user profiles on Linux and Windows, and the conventions that have been established on these platforms over the years. The second section details how they are broken on each platform, and why they are broken.
    Mon Aug 28 11:10:45 2023 - permalink -
    - https://gist.github.com/sharadhr/39b804236c1941e9c30d90af828ad41e
    linux programming windows
  • C++ Rvalue References Explained
    Wed Dec 21 23:55:50 2022 - permalink -
    - http://thbecker.net/articles/rvalue_references/section_01.html
    c++ doc programming reference
  • Online Color Blindness Simulator | DaltonLens
    This page lets you simulate various color vision deficiencies (CVD) directly in your browser. There are many simulation methods, with varying degrees of accuracy. Several are proposed here and they all have been carefully implemented in DaltonLens-Python by reviewing the state-of-the-art and testing them against reference implementations.
    Mon Aug 29 14:40:32 2022 - permalink -
    - https://daltonlens.org/colorblindness-simulator
    blind color simulation
  • Vim color schemes
    Sat Apr 2 15:04:53 2022 - permalink -
    - https://vimcolorschemes.com/
    color linux vim
  • Do you need a blockchain?
    most probably
    NO
    Wed Dec 9 15:24:40 2020 - permalink -
    - http://doyouneedablockchain.com/
    blockchain crypto
  • BashPitfalls - Greg's Wiki
    This page is a compilation of common mistakes made by bash users. Each example is flawed in some way.
    Wed Sep 9 12:10:26 2020 - permalink -
    - https://mywiki.wooledge.org/BashPitfalls
    bash linux programming
  • How Earth’s Climate Changes Naturally (and Why Things Are Different Now) | Quanta Magazine
    Earth has been a snowball and a hothouse at different times in its past. So if the climate changed before humans, how can we be sure we’re responsible for the dramatic warming that’s happening today?

    In part it’s because we can clearly show the causal link between carbon dioxide emissions from human activity and the 1.28 degree Celsius (and rising) global temperature increase since preindustrial times.

    But paleoclimatologists have also made great strides in understanding the processes that drove climate change in Earth’s past. Here’s a primer on 10 ways climate varies naturally, and how each compares with what’s happening now.
    Wed Jul 22 14:36:07 2020 - permalink -
    - https://www.quantamagazine.org/how-earths-climate-changes-naturally-and-why-things-are-different-now-20200721/
    earth science
  • Let's Encrypt without port 80
    Mon Jun 22 19:03:24 2020 - permalink -
    - https://jmorahan.net/article/lets-encrypt-without-port-80
    apache certificate encryption letsencrypt port
  • The Art of Command Line in one page · jlevy/the-art-of-command-line
    Fluency on the command line is a skill often neglected or considered arcane, but it improves your flexibility and productivity as an engineer in both obvious and subtle ways. This is a selection of notes and tips on using the command-line that we've found useful when working on Linux. Some tips are elementary, and some are fairly specific, sophisticated, or obscure. This page is not long, but if you can use and recall all the items here, you know a lot.
    Tue Mar 24 07:32:13 2020 - permalink -
    - https://github.com/jlevy/the-art-of-command-line/blob/master/README.md
    cli doc linux reference tips
  • Understanding GNU Screen's hardstatus strings · kbps
    Wed Mar 4 04:22:37 2020 - permalink -
    - https://www.kilobitspersecond.com/2014/02/10/understanding-gnu-screens-hardstatus-strings/
    cli linux screen
  • Hacker Laws: Kernighan's Law – You are not smart enough to debug it
    Mon Feb 17 17:17:54 2020 - permalink -
    - https://github.com/dwmkerr/hacker-laws#kernighans-law
  • Clone schema in Postgres | Denish Patel
    A function to clone a shema in PostgreSQL.
    Tue Aug 20 04:05:28 2019 - permalink -
    - http://www.pateldenish.com/2019/08/clone-schema-in-postgres.html
    database postgres sql
  • The Largest Ever Analysis of Film Dialogue by Gender: 2,000 scripts, 25,000 actors, 4 million lines
    Mon Feb 25 15:31:25 2019 - permalink -
    - https://pudding.cool/2017/03/film-dialogue/
    analysis data film stats visualisation
  • Cybertec Postgres Configurator
    Tool to help tune postgresql.conf parameters.
    Sat Aug 25 15:33:13 2018 - permalink -
    - http://pgconfigurator.cybertec.at/
    config database postgres sql
  • The Joel Test: 12 Steps to Better Code – Joel on Software
    [2000-08-09]

    The Joel Test

    1.    Do you use source control?
    2.    Can you make a build in one step?
    3.    Do you make daily builds?
    4.    Do you have a bug database?
    5.    Do you fix bugs before writing new code?
    6.    Do you have an up-to-date schedule?
    7.    Do you have a spec?
    8.    Do programmers have quiet working conditions?
    9.    Do you use the best tools money can buy?
    10.    Do you have testers?
    11.    Do new candidates write code during their interview?
    12.    Do you do hallway usability testing?
    Sat Aug 4 09:15:52 2018 - permalink -
    - https://www.joelonsoftware.com/2000/08/09/the-joel-test-12-steps-to-better-code/
    code programming test
  • Webgraphviz
    WebGraphviz is Graphviz in the Browser
    Thu Jul 12 06:06:26 2018 - permalink -
    - http://www.webgraphviz.com/
    graph latex online
  • TeXcount: LaTeX word count
    TeXcount is a Perl script for counting words in LaTeX documents. It parses valid LaTeX documents counting words, headers, formulae (mathematics) and floats/begin-end groups.
    Thu Jul 12 06:04:46 2018 - permalink -
    - http://app.uio.no/ifi/texcount/index.html
    latex online perl script services
  • NASA Worldview
    This app from NASA's EOSDIS provides the capability to interactively browse over 600 global, full-resolution satellite imagery layers on desktop and mobile devices. Many of the imagery layers are updated within three hours of observation, showing the entire Earth as it is "right now". This supports time-critical applications such as wildfire management, air quality measurements, and flood monitoring. Some satellite imagery layers span almost 30 years, providing a long term view of our dynamic planet. The underlying data is available for download, and Arctic and Antarctic views of several imagery layers are available for a “full globe” perspective.
    Mon May 21 05:43:28 2018 - permalink -
    - https://worldview.earthdata.nasa.gov/
    data earth map nasa online satellite
  • PostgreSQL Primer for Busy People · zaiste.net
    Tue May 8 10:33:06 2018 - permalink -
    - https://zaiste.net/postgresql_primer_for_busy_people/
    admin cheatsheet database postgres
  • TLDR pages - Simplified and community-driven man pages
    Sun May 6 18:39:35 2018 - permalink -
    - http://tldr.sh/
    command help linux manpage shell
  • Simon Tatham's Puzzles on Google Play
    Collection of 39 single-player open-source logic puzzle games, free, no ads, playable offline.

    All generated on demand with adjustable size/difficulty, so you'll never run out of puzzles.

    Contains the following 39 games:
    Black Box, Bridges, Cube, Dominosa, Fifteen, Filling, Flip, Flood, Galaxies, Guess, Inertia, Keen, Light Up, Loopy, Magnets, Map, Mines (Minesweeper), Net, Netslide, Palisade, Pattern, Pearl, Pegs (Solitaire), Range, Rectangles, Same Game, Signpost, Singles, Sixteen, Slant, Solo (Sudoku), Tents, Towers, Tracks, Twiddle, Undead, Unequal, Unruly, Untangle
    Sun May 6 06:47:47 2018 - permalink -
    - https://play.google.com/store/apps/details?id=name.boyle.chris.sgtpuzzles&pageId=none
    android games jeux opensource puzzle
  • Unbound DNS Server Tutorial @ Calomel.org
    Sat Apr 7 08:46:15 2018 - permalink -
    - https://calomel.org/unbound_dns.html
    dns server tuto
  • [1802.04718] The random walk of cars and their collision probabilities with planets
    On February 6th, 2018 SpaceX launched a Tesla Roadster on a Mars crossing orbit. We perform N-body simulations to determine the fate of the object over the next several million years, under the relevant perturbations acting on the orbit. The orbital evolution is initially dominated by close encounters with the Earth. The first close encounter with the Earth will occur in 2091. The repeated encounters lead to a random walk that eventually causes close encounters with other terrestrial planets and the Sun. Long-term integrations become highly sensitive to the initial conditions after several such close encounters. By running a large ensemble of simulations with slightly perturbed initial conditions, we estimate the probability of a collision with Earth and Venus over the next one million years to be 6% and 2.5%, respectively. We estimate the dynamical lifetime of the Tesla to be a few tens of millions of years.
    Sat Feb 24 14:21:41 2018 - permalink -
    - https://arxiv.org/abs/1802.04718
    paper probability research science space spacex tesla
  • thumbnail
    A movie junkie listed more than 1,800 must-see movies and arranged them by genre and themes on a giant imaginary roadmap
    Mon Oct 30 12:08:52 2017 - permalink -
    - https://i.redd.it/jmqqav1dmuuz.jpg
  • BabelMap Online (Unicode 10.0)
    Verz handy online version of BabelMap.
    Tue Oct 24 18:07:45 2017 - permalink -
    - http://www.babelstone.co.uk/Unicode/babelmap.html
    character online reference table unicode utf8
  • A Dramatic Tour through Python’s Data Visualization Landscape (including ggplot and Altair) – Regress to Impress
    Overview of 5 options when it comes to statistical data visualisation in Python:

    - matplotlib
    - pandas
    - seaborn
    - ggplot
    - altair
    Mon Feb 27 08:05:47 2017 - permalink -
    - https://dansaber.wordpress.com/2016/10/02/a-dramatic-tour-through-pythons-data-visualization-landscape-including-ggplot-and-altair/
    analysis data plot python stats visualisation
  • To Build a Better Ballot
    An interactive guide to alternative voting systems.
    Mon Dec 12 20:22:01 2016 - permalink -
    - http://ncase.me/ballot/
    elections interactive politics politique simulation vote
  • How the Circle Line rogue train was caught with data
    Thu Dec 1 22:25:54 2016 - permalink -
    - https://blog.data.gov.sg/how-we-caught-the-circle-line-rogue-train-with-data-79405c86ab6a#.e1m3pjs8t
    data jupyter mrt python singapore train transport
  • PostgreSQL when it’s not your job.
    Tue Oct 4 16:10:28 2016 - permalink -
    - http://thebuild.com/presentations/not-my-job-djangocon-us.pdf
    admin config database pdf performance postgres sql
  • Step Charts in Microsoft Excel
    Step Chart Approach 1: XY Chart with Error Bars

    One way to get horizontal and vertical lines from data points is with error bars. You don't need to add points to get the additional segments. However, you do need to add formulas to compute custom error bar values, and you need to assign error bars to the series. Because horizontal (X) error bars are needed, the chart must be an XY chart with its inferior date scale axis, not a Line chart.

    Step Chart Approach 2: Line Chart with Repeated Ranges

    Until recently I considered only two techniques for building step charts: the XY plus error bars approach described above, and manually (i.e., tediously) inserting extra data into the worksheet to allow for one point per corner. But in February 2006, Michel Gerday of Belgium described the following technique in the Microsoft Excel Charting newsgroup, and his technique automatically adds the extra data to a line chart.
    Tue Sep 20 18:24:08 2016 - permalink -
    - http://peltiertech.com/Excel/ChartsHowTo/StepChart.html
    chart excel plot step trick xy
  • Free Automated Malware Analysis Service - powered by VxStream Sandbox
    via sebsauvage

    Le système tourne dans une machine virtuelle et évalue le comportement de l'exécutable, regarde les accès réseau, analyse d'eventuelles entropies trop élevée dans certaines parties du fichier (démontrant la présence d'un chiffrement ou d'une compression), etc.
    Mon Aug 29 21:58:49 2016 - permalink -
    - https://www.hybrid-analysis.com/
    analysis exe free malware scan virus
  • tabulate 0.7.5 : Python Package Index
    Pretty-print tabular data in Python, a library and a command-line utility.
    Wed Aug 17 23:56:52 2016 - permalink -
    - https://pypi.python.org/pypi/tabulate
    programming python table
  • Working with the Chaos Monkey
    The Chaos Monkey’s job is to randomly kill instances and services within our architecture
    Tue Jul 26 00:37:30 2016 - permalink -
    - https://blog.codinghorror.com/working-with-the-chaos-monkey/
    chaos failure kill monkey server services
  • A beginners guide to thinking in SQL 🐘
    Tue Jul 12 20:43:33 2016 - permalink -
    - http://www.sohamkamani.com/blog/2016/07/07/a-beginners-guide-to-sql/
    beginner database postgres sql
  • How To Easily Print A Large Image To Multiple Pages In Windows | Scottie’s Tech.Info
    This tip is really great:

    "You’re going to find this hard to believe, but that built-in Windows app that will split-print an image for you is none other than Microsoft’s much-maligned Paint application!!"


       1. Open the image you’d like to print in Paint
       2. Select: Print -> Page Setup (Vista and 7), or File -> Page Setup (in XP)
       3. Under Scaling, select Fit to and change the setting to something like “2 by 2 page(s)”
       4. Click OK
       5. Print the image from Paint, and make sure to select “All Pages”
    Thu Mar 3 10:53:58 2016 - permalink -
    - http://scottiestech.info/2009/08/08/how-to-easily-print-a-large-image-to-multiple-pages-in-windows/
    image map pages paint print split windows
  • Interactive website to discover the Garden of Earthly Delights from Jheronimus Bosch
    The interactive documentary Jheronimus Bosch, the Garden of Earthly Delights provides an in-depth tour though The Garden of Earthly Delights. In a web interface the visitor will be taken on an audio-visual journey, including sound, music, video and images to enrich the storytelling.
    Wed Feb 10 23:33:09 2016 - permalink -
    - https://tuinderlusten-jheronimusbosch.ntr.nl/en
    doc interactive painting web
  • NirSoft - freeware utilities: password recovery, system utilities, desktop utilities
    NirSoft web site provides a unique collection of small and useful freeware utilities, all of them developed by Nir Sofer.
    Sat Jan 23 13:29:16 2016 - permalink -
    - http://www.nirsoft.net/
    free nirsoft outils software tools windows
Links per page: 20 50 100
◄Older
page 1 / 5
Shaarli - The personal, minimalist, super-fast, no-database delicious clone by the Shaarli community - Help/documentation