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66 d Changing font size in Windows dialog in C++ Home
452 d How I implemented wc in the browser in 3 days Home
462 d Advanced markdown processing in Go Home
464 d Persisted Svelte store using IndexedDB Home
482 d I’m a Go freelancer for hire Home / About me
About me Home
483 d Thoughts on Go after writing 3 websites Home
485 d Website Home
Hiding duplicate content from your site via robots.txt Home
Software Home
Writings Home
487 d Logging HTTP requests in Go Home / Writings / Go programming articles
488 d Using Fabric for deploying server software Home
Value your time Home
gflags - a debugging story Home
Document your software Home
Designing web forums software Home
Writing to sell Home
On difference between amateur and professional shareware Home / My future is so bright that I’ll need to wear sunglasses
blog posts Home / Writings
Paradox of bad comments Home
How I improved Sumatra performance by ~60% Home
Startup management lessons from “The Social Network” Home
Marketing lessons from WebP launch Home
Summary of talk on continuous deployment Home
You have to implement to understand Home
Where do bugs come from? Home
Summary of David Ditzel talk on binary translation Home / Where do bugs come from?
489 d Guide to predefined macros in C++ compilers (gcc, clang, msvc etc.) Home
How I sped up Go by 20% (or is Go really slower than Java?) Home
Sumatra 0.8 released Home
Variadic Macros (C++) Home
Sane #include hierarchy for C and C++ Home
SumatraPDF 0.8.1 release Home
realloc() on Windows vs. Linux Home
SumatraPDF 0.9 released Home
SumatraPDF 0.9.1 released Home
SumatraPDF 0.9.3 released Home
SumatraPDF 0.6 released Home
ssh tips Home
A debugging story Home
Sumatra 0.9.4 release Home
SumatraPDF 1.0 released Home
Best captcha is exotic captcha Home
Few things I’ve learned when writing Sumatra PDF Home
E-books economics Home
Productivity ideas Home
uISV stories Home
SumatraPDF 0.5 released Home
SumatraPDF 1.1 release Home
Go vs. Python for a simple web server Home
Tools that find bugs in c and c++ code via static code analysis Home
SEO is harder than you think Home
SumatraPDF 0.4 released Home
Sumatra PDF 0.3 released Home
Performance optimization story Home
Simple duplicate post detection for your blog, forum or commenting software Home
8 habits for becoming a better programmer Home
Using averages - a common performance measurement mistake Home
SumatraPDF 1.2 released Home
Executable compressors comparisons: upx 3.07w vs. mpress 2.17 Home
Writing a custom installer for Windows software Home
SumatraPDF 1.3 released Home
My social marketing failure Home
XML is really, really slow Home
SumatraPDF 1.4 released Home
SumatraPDF 1.5 released Home
90% of success is showing up - a proof Home
Easy vs. probable or how to make money with software Home
SumatraPDF 1.6 released Home
Experience porting 4k lines of C code to go Home
How to make software crash less Home
SumatraPDF 1.7 released Home
SumatraPDF 1.8 released Home
SumatraPDF 1.9 released Home
Showing html from memory in embedded web control on windows Home
A list of chm readers/viewers for Windows Home
SumatraPDF 2.0 released Home
Buying a certificate for signing windows applications Home
SumatraPDF 2.1 released Home
Websites with free ePub and mobi ebooks Home
Trade offs in designing versatile log format Home
Sumatra PDF 0.2 released Home
Speeding up Go with custom allocators Home / Go Cookbook
Design and implementation of translation system for desktop software Home
SumatraPDF 2.2 released Home
Sumatra PDF is born Home
How I ported pigz from Unix to Windows Home
SumatraPDF 2.4 released Home
Embedding binary resources on Windows Home
SumatraPDF 2.5.2 released Home
SumatraPDF 3.0 released Home
Tip for per-test verbose logging in Go Home
Improving speed of SMAZ compressor by 2.6x/1.5x Home / Go Cookbook
Accessing GitHub API from Go Home / Go Cookbook
Go package for better guid generation Home
Extracting files from .7z archives in Go Home / Go Cookbook
Optimizing JavaScript by using arrays instead of objects Home
Analyzing browserify bundles to minimize JavaScript bundle size Home
What I've learned from "After the Gold Rush" Home / Writings
Engineering school (summary of Rick Catell talk) Home / Writings
Bugs and eyeballs Home
Principle of good design: discoverability Home
The future is here, it’s just not evenly distributed Home
Go programming articles Home / Writings
Business articles Home / Writings
Find programming work by increasing luck surface area Home
Extreme #include discipline for C++ code Home
@levelsio and survivorship bias Home
Good programming practices Home
Tutorial for github.com/kjk/flex Go package (implementation of CSS flexbox algorithm) Home
Things I Learned the Hard Way: Engineering and Computer Science in the Real World Home / Writings
Powering a blog with Notion and Netlify Home
Review of “Hot text - web writing that works” Home
Lessons learned from 15 years of SumatraPDF, an open source Windows app Home
How I use Roam Research Home
The Silver Searcher windows port Home / Software
57 MicroConf videos for self-funded software businesses Home
List of website with free eBooks in EPUB and MOBI formats Home / Writings
List of mobi format readers and viewers for Windows Home / Writings
List of ePub format readers and viewers for Windows Home / Writings
Compile-time asserts in C Home
Basics of writing DOS .bat batch files Home
High-resolution timer for timing code fragments Home
Sumatra PDF 0.7 released Home
List of CHM readers and viewers for Window Home / Writings
Lessons learned porting 50k loc from Java to Go Home
List of CBR, CBZ comic book readers for windows Home / Writings
Accurate timers on Windows Home
The things we do to ship desktop software Home
497 d filerotate - Go library for rotating files Home / Software
518 d How I reverse engineered Notion API Home / Writings / Programming articles
Hide header on scroll in Svelte Home / Writings / Programming articles
519 d Advanced web spidering with Puppeteer Home / Writings / Programming articles
Big projects written in Go Home / Writings / Go programming articles
Basics of freelancing Home / Writings / Business articles
Summary Of "The Mom test" book about validating business ideas Home / Writings / Business articles
Summary of “Sell to Strangers” video about content marketing Home / Writings / Business articles
Summary of Founders Battle Talk #7 about SEO Home / Writings / Business articles
Portable Executable File Format Home / Writings
Finding freelancers Home / Writings / Business articles
Essentials of Starting Indie Business Home / Writings / Business articles
A short guide to marketing for developers Home / Writings / Business articles
Using MySQL in Docker for local testing in Python Home / Writings / Programming articles
Rewritten - tales of rewriting software from X to Go Home / Writings / Go programming articles
Companies using go Home / Writings / Go programming articles
Diary of a solo dev building a web app Home / Writings
Small business stories Home / Writings / Business articles
Programming articles Home / Writings
Social media image sizes Home / Writings / Programming articles
Using Go instead of bash for scripts Home / Writings / Go programming articles
Using GitHub Actions with Go Home / Writings / Go programming articles
Typescript basics Home / Writings / Programming articles
Sending emails with Mailgun in Go Home / Writings / Go programming articles
700 d Tech note: speed of iteration in programming Home / Writings / Diary of a solo dev building a web app
701 d Day 35: fixed onedrive, gdrive token refresh Home / Writings / Diary of a solo dev building a web app
702 d Day 34: more backblaze, refactorings Home / Writings / Diary of a solo dev building a web app
Tech note: JavaScript debugging helpers Home / Writings / Diary of a solo dev building a web app
Tech note: Dropbox login Home / Writings / Diary of a solo dev building a web app
704 d Day 33: more backblaze Home / Writings / Diary of a solo dev building a web app
706 d Day 10: s3 file delete, ui tweaks Home / Writings / Diary of a solo dev building a web app
Day 18: improving s3 upload Home / Writings / Diary of a solo dev building a web app
Day 0: the idea Home / Writings / Diary of a solo dev building a web app
Day 32: optimizations, backblaze Home / Writings / Diary of a solo dev building a web app
Day 1: tech stack, creating project from scratch Home / Writings / Diary of a solo dev building a web app
Day 2: displaying list of files Home / Writings / Diary of a solo dev building a web app
Day 3: Dropbox Home / Writings / Diary of a solo dev building a web app
JavaScript optimization story Home / Writings / Diary of a solo dev building a web app
Day 4: s3, sorting, remembering credentials Home / Writings / Diary of a solo dev building a web app
Day 5: setting up a website Home / Writings / Diary of a solo dev building a web app
Day 31: tweaking bookmarks list Home / Writings / Diary of a solo dev building a web app
Day 6: Dropbox fix, bug fixes and small improvements Home / Writings / Diary of a solo dev building a web app
Day 30: better dialogs Home / Writings / Diary of a solo dev building a web app
Day 7: context menu, file delete Home / Writings / Diary of a solo dev building a web app
Day 29: optimizing file representation and s3 Home / Writings / Diary of a solo dev building a web app
Day 8: more file delete, file upload Home / Writings / Diary of a solo dev building a web app
Day 28: OneDrive support, more file properties Home / Writings / Diary of a solo dev building a web app
Day 9: Dropbox upload Home / Writings / Diary of a solo dev building a web app
Day 27: better Google Drive login, One Drive support Home / Writings / Diary of a solo dev building a web app
Day 11: upload file to local fs Home / Writings / Diary of a solo dev building a web app
Day 12: s3 upload and delete directories Home / Writings / Diary of a solo dev building a web app
Day 26: more google drive support Home / Writings / Diary of a solo dev building a web app
Day 13: local fs fixes Home / Writings / Diary of a solo dev building a web app
Day 25: Google Drive support Home / Writings / Diary of a solo dev building a web app
Day 24: dialog refactoring Home / Writings / Diary of a solo dev building a web app
Day 14: image preview, file rename Home / Writings / Diary of a solo dev building a web app
Day 23: file copy Home / Writings / Diary of a solo dev building a web app
Day 15: text preview Home / Writings / Diary of a solo dev building a web app
Day 22: file properties Home / Writings / Diary of a solo dev building a web app
Day 16: bookmarks Home / Writings / Diary of a solo dev building a web app
Day 17: file download Home / Writings / Diary of a solo dev building a web app
Day 21: s3 create new dir, last modification time Home / Writings / Diary of a solo dev building a web app
Day 19: analytics, context menu Home / Writings / Diary of a solo dev building a web app
Day 20: fs refactoring Home / Writings / Diary of a solo dev building a web app
707 d Programmer productivity: lines of code edition Home / Writings / Diary of a solo dev building a web app
715 d Filerion marketing Home / Writings / Diary of a solo dev building a web app
718 d Thoughts on developer productivity Home / Writings / Diary of a solo dev building a web app
Thoughts on getting user feedback Home / Writings / Diary of a solo dev building a web app
Using Roam Research for productivity Home / Writings / Diary of a solo dev building a web app
Filerion tech stack Home / Writings / Diary of a solo dev building a web app
Thoughts on documentation Home / Writings / Diary of a solo dev building a web app
725 d Upload files from your computer Home / Software / Filerion documentation
S3 and directories Home / Software / Filerion documentation
Filerion documentation Home / Software
1033 d Pure Bash Bible Home / Writings
1034 d Using Notion API Go client Home / Software
atomicfile - robustly writing to a file in Go Home / Software
siser Home / Software
Vim Reference Home / Writings
1766 d Fuzzing Markdown parser written in Go Home / Go Cookbook
1784 d Pigz windows port Home / Software
2066 d Go Cookbook Home / Writings
2509 d Experience porting 4.5k loc of C to Go (Facebook's CSS flexbox implementation Yoga) Home / Go Cookbook
2532 d 3 ways to iterate in Go Home / Go Cookbook
2533 d Embedding build number in Go executable Home / Go Cookbook
Rotate log files daily in Go Home / Go Cookbook
HTTPS for free in Go, with little help of Let's Encrypt Home / Go Cookbook
Using MySQL in Docker for local testing In Go Home / Go Cookbook
Advanced command execution in Go with os/exec Home / Go Cookbook
Generating good unique ids in Go Home / Go Cookbook
Simple serialization format for logging and analytics in Go Home / Go Cookbook
2539 d Solo founders with profitable businesses, collected stories Home

Krzysztof Kowalczyk