Skip to content
View markheydon's full-sized avatar
5 followers · 4 following

Achievements

Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor

Highlights

  • Pro

Organizations

@mhcg

Block or report markheydon

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
markheydon/README.md

Hi, I'm Mark 👋

Solo C#/.NET developer. I build practical tools for Microsoft 365 Business and small-business day-to-day ops. Passionate about open source: I design, ship, and keep a lot of that work maintained.

🔧 What I'm working on

I maintain a live project board showing my current work across multiple repositories:

👉 Mark's Workboard

This includes:

  • Open-source libraries (e.g. FreeAgent integrations).
  • Internal tools and automation.
  • Ongoing improvements and experiments.

🤖 How I work

I'm a solo developer. I use AI coding tools openly, not instead of knowing how to build, but because one person can't do everything alone, and they help more of the right work actually ship.

My automation and workflow setup lives here:

👉 https://github.com/markheydon/github-workflows

🚀 Key projects

❤️ Supporting my work

If you find my work useful, you can support it via GitHub Sponsors:

👉 https://github.com/sponsors/markheydon

It helps fund hosting, CI, and ongoing maintenance of the public tools on this board. Open source alone doesn't pay the bills, but sponsorship and paid work help keep that work production-quality.

Pinned Loading

  1. solo-dev-boardsolo-dev-boardPublic

    A .NET Blazor app for solo developers to manage GitHub workloads across multiple repositories in one unified interface.

    C# 1

  2. the-teachings-of-monkeythe-teachings-of-monkeyPublic

    An open source Hugo site archiving the wisdom, chaos, and camp teachings of the cult TV series Monkey (Saiyūki).

    Python

  3. monolog-wp-climonolog-wp-cliPublic

    Extension for Monolog to support outputting to WP-CLI (The WordPress command line interface) when running wp command lines.

    PHP 10 3

  4. avd-occasionalavd-occasionalPublic

    Cost-effective Azure Virtual Desktop setup using Bicep Infrastructure as Code. Deploy and manage a personal desktop for occasional work sessions with minimal costs.

    PowerShell 1

  5. freeagent-dotnetfreeagent-dotnetPublic

    Open source FreeAgent API Client for .NET.

    C#

  6. import-to-plannerimport-to-plannerPublic

    Single-use Blazor utility to import tasks from CSV into Microsoft Planner.

    C#

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
markheydon (Mark Heydon) · GitHub
Skip to content
View markheydon's full-sized avatar
5
followers
 · 4
following

Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Highlights
  • 
Pro

Organizations
@mhcg

Block or report markheydon

Block user

Prevent this user from interacting with your repositories and sending you notifications.
Learn more about blocking users.


You must be logged in to block users.


Content in all repositories owned by your account will be closed.


Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.

Report abuse

Contact GitHub support about this user’s behavior.
Learn more about reporting abuse.

Report abuse
markheydon/README.md
Hi, I'm Mark 👋
Solo C#/.NET developer. I build practical tools for Microsoft 365 Business and small-business day-to-day ops. Passionate about open source: I design, ship, and keep a lot of that work maintained.
🔧 What I'm working on
I maintain a live project board showing my current work across multiple repositories:
👉 Mark's Workboard
This includes:
  • Open-source libraries (e.g. FreeAgent integrations).
  • Internal tools and automation.
  • Ongoing improvements and experiments.
🤖 How I work
I'm a solo developer. I use AI coding tools openly, not instead of knowing how to build, but because one person can't do everything alone, and they help more of the right work actually ship.
My automation and workflow setup lives here:
👉 https://github.com/markheydon/github-workflows
🚀 Key projects
❤️ Supporting my work
If you find my work useful, you can support it via GitHub Sponsors:
👉 https://github.com/sponsors/markheydon
It helps fund hosting, CI, and ongoing maintenance of the public tools on this board. Open source alone doesn't pay the bills, but sponsorship and paid work help keep that work production-quality.

Pinned
Loading
  1. solo-dev-boardsolo-dev-boardPublic
    
A .NET Blazor app for solo developers to manage GitHub workloads across multiple repositories in one unified interface.

    C#
1

  2. the-teachings-of-monkeythe-teachings-of-monkeyPublic
    
An open source Hugo site archiving the wisdom, chaos, and camp teachings of the cult TV series Monkey (Saiyūki).

    Python
  3. monolog-wp-climonolog-wp-cliPublic
    
Extension for Monolog to support outputting to WP-CLI (The WordPress command line interface) when running wp command lines.

    PHP
10

3

  4. avd-occasionalavd-occasionalPublic
    
Cost-effective Azure Virtual Desktop setup using Bicep Infrastructure as Code. Deploy and manage a personal desktop for occasional work sessions with minimal costs.

    PowerShell
1

  5. freeagent-dotnetfreeagent-dotnetPublic
    
Open source FreeAgent API Client for .NET.

    C#
  6. import-to-plannerimport-to-plannerPublic
    
Single-use Blazor utility to import tasks from CSV into Microsoft Planner.

    C#

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
markheydon (Mark Heydon) · GitHub
Skip to content
View markheydon's full-sized avatar
5
followers
 · 4
following

Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Highlights
  • 
Pro

Organizations
@mhcg

Block or report markheydon

Block user

Prevent this user from interacting with your repositories and sending you notifications.
Learn more about blocking users.


You must be logged in to block users.


Content in all repositories owned by your account will be closed.


Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.

Report abuse

Contact GitHub support about this user’s behavior.
Learn more about reporting abuse.

Report abuse
markheydon/README.md
Hi, I'm Mark 👋
Solo C#/.NET developer. I build practical tools for Microsoft 365 Business and small-business day-to-day ops. Passionate about open source: I design, ship, and keep a lot of that work maintained.
🔧 What I'm working on
I maintain a live project board showing my current work across multiple repositories:
👉 Mark's Workboard
This includes:
  • Open-source libraries (e.g. FreeAgent integrations).
  • Internal tools and automation.
  • Ongoing improvements and experiments.
🤖 How I work
I'm a solo developer. I use AI coding tools openly, not instead of knowing how to build, but because one person can't do everything alone, and they help more of the right work actually ship.
My automation and workflow setup lives here:
👉 https://github.com/markheydon/github-workflows
🚀 Key projects
❤️ Supporting my work
If you find my work useful, you can support it via GitHub Sponsors:
👉 https://github.com/sponsors/markheydon
It helps fund hosting, CI, and ongoing maintenance of the public tools on this board. Open source alone doesn't pay the bills, but sponsorship and paid work help keep that work production-quality.

Pinned
Loading
  1. solo-dev-boardsolo-dev-boardPublic
    
A .NET Blazor app for solo developers to manage GitHub workloads across multiple repositories in one unified interface.

    C#
1

  2. the-teachings-of-monkeythe-teachings-of-monkeyPublic
    
An open source Hugo site archiving the wisdom, chaos, and camp teachings of the cult TV series Monkey (Saiyūki).

    Python
  3. monolog-wp-climonolog-wp-cliPublic
    
Extension for Monolog to support outputting to WP-CLI (The WordPress command line interface) when running wp command lines.

    PHP
10

3

  4. avd-occasionalavd-occasionalPublic
    
Cost-effective Azure Virtual Desktop setup using Bicep Infrastructure as Code. Deploy and manage a personal desktop for occasional work sessions with minimal costs.

    PowerShell
1

  5. freeagent-dotnetfreeagent-dotnetPublic
    
Open source FreeAgent API Client for .NET.

    C#
  6. import-to-plannerimport-to-plannerPublic
    
Single-use Blazor utility to import tasks from CSV into Microsoft Planner.

    C#

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
markheydon (Mark Heydon) · GitHub
Skip to content
View markheydon's full-sized avatar
5
followers
 · 4
following

Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Highlights
  • 
Pro

Organizations
@mhcg

Block or report markheydon

Block user

Prevent this user from interacting with your repositories and sending you notifications.
Learn more about blocking users.


You must be logged in to block users.


Content in all repositories owned by your account will be closed.


Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.

Report abuse

Contact GitHub support about this user’s behavior.
Learn more about reporting abuse.

Report abuse
markheydon/README.md
Hi, I'm Mark 👋
Solo C#/.NET developer. I build practical tools for Microsoft 365 Business and small-business day-to-day ops. Passionate about open source: I design, ship, and keep a lot of that work maintained.
🔧 What I'm working on
I maintain a live project board showing my current work across multiple repositories:
👉 Mark's Workboard
This includes:
  • Open-source libraries (e.g. FreeAgent integrations).
  • Internal tools and automation.
  • Ongoing improvements and experiments.
🤖 How I work
I'm a solo developer. I use AI coding tools openly, not instead of knowing how to build, but because one person can't do everything alone, and they help more of the right work actually ship.
My automation and workflow setup lives here:
👉 https://github.com/markheydon/github-workflows
🚀 Key projects
❤️ Supporting my work
If you find my work useful, you can support it via GitHub Sponsors:
👉 https://github.com/sponsors/markheydon
It helps fund hosting, CI, and ongoing maintenance of the public tools on this board. Open source alone doesn't pay the bills, but sponsorship and paid work help keep that work production-quality.

Pinned
Loading
  1. solo-dev-boardsolo-dev-boardPublic
    
A .NET Blazor app for solo developers to manage GitHub workloads across multiple repositories in one unified interface.

    C#
1

  2. the-teachings-of-monkeythe-teachings-of-monkeyPublic
    
An open source Hugo site archiving the wisdom, chaos, and camp teachings of the cult TV series Monkey (Saiyūki).

    Python
  3. monolog-wp-climonolog-wp-cliPublic
    
Extension for Monolog to support outputting to WP-CLI (The WordPress command line interface) when running wp command lines.

    PHP
10

3

  4. avd-occasionalavd-occasionalPublic
    
Cost-effective Azure Virtual Desktop setup using Bicep Infrastructure as Code. Deploy and manage a personal desktop for occasional work sessions with minimal costs.

    PowerShell
1

  5. freeagent-dotnetfreeagent-dotnetPublic
    
Open source FreeAgent API Client for .NET.

    C#
  6. import-to-plannerimport-to-plannerPublic
    
Single-use Blazor utility to import tasks from CSV into Microsoft Planner.

    C#

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
markheydon (Mark Heydon) · GitHub
Skip to content
View markheydon's full-sized avatar
5
followers
 · 4
following

Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Highlights
  • 
Pro

Organizations
@mhcg

Block or report markheydon

Block user

Prevent this user from interacting with your repositories and sending you notifications.
Learn more about blocking users.


You must be logged in to block users.


Content in all repositories owned by your account will be closed.


Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.

Report abuse

Contact GitHub support about this user’s behavior.
Learn more about reporting abuse.

Report abuse
markheydon/README.md
Hi, I'm Mark 👋
Solo C#/.NET developer. I build practical tools for Microsoft 365 Business and small-business day-to-day ops. Passionate about open source: I design, ship, and keep a lot of that work maintained.
🔧 What I'm working on
I maintain a live project board showing my current work across multiple repositories:
👉 Mark's Workboard
This includes:
  • Open-source libraries (e.g. FreeAgent integrations).
  • Internal tools and automation.
  • Ongoing improvements and experiments.
🤖 How I work
I'm a solo developer. I use AI coding tools openly, not instead of knowing how to build, but because one person can't do everything alone, and they help more of the right work actually ship.
My automation and workflow setup lives here:
👉 https://github.com/markheydon/github-workflows
🚀 Key projects
❤️ Supporting my work
If you find my work useful, you can support it via GitHub Sponsors:
👉 https://github.com/sponsors/markheydon
It helps fund hosting, CI, and ongoing maintenance of the public tools on this board. Open source alone doesn't pay the bills, but sponsorship and paid work help keep that work production-quality.

Pinned
Loading
  1. solo-dev-boardsolo-dev-boardPublic
    
A .NET Blazor app for solo developers to manage GitHub workloads across multiple repositories in one unified interface.

    C#
1

  2. the-teachings-of-monkeythe-teachings-of-monkeyPublic
    
An open source Hugo site archiving the wisdom, chaos, and camp teachings of the cult TV series Monkey (Saiyūki).

    Python
  3. monolog-wp-climonolog-wp-cliPublic
    
Extension for Monolog to support outputting to WP-CLI (The WordPress command line interface) when running wp command lines.

    PHP
10

3

  4. avd-occasionalavd-occasionalPublic
    
Cost-effective Azure Virtual Desktop setup using Bicep Infrastructure as Code. Deploy and manage a personal desktop for occasional work sessions with minimal costs.

    PowerShell
1

  5. freeagent-dotnetfreeagent-dotnetPublic
    
Open source FreeAgent API Client for .NET.

    C#
  6. import-to-plannerimport-to-plannerPublic
    
Single-use Blazor utility to import tasks from CSV into Microsoft Planner.

    C#

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
markheydon (Mark Heydon) · GitHub
Skip to content
View markheydon's full-sized avatar
5
followers
 · 4
following

Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Highlights
  • 
Pro

Organizations
@mhcg

Block or report markheydon

Block user

Prevent this user from interacting with your repositories and sending you notifications.
Learn more about blocking users.


You must be logged in to block users.


Content in all repositories owned by your account will be closed.


Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.

Report abuse

Contact GitHub support about this user’s behavior.
Learn more about reporting abuse.

Report abuse
markheydon/README.md
Hi, I'm Mark 👋
Solo C#/.NET developer. I build practical tools for Microsoft 365 Business and small-business day-to-day ops. Passionate about open source: I design, ship, and keep a lot of that work maintained.
🔧 What I'm working on
I maintain a live project board showing my current work across multiple repositories:
👉 Mark's Workboard
This includes:
  • Open-source libraries (e.g. FreeAgent integrations).
  • Internal tools and automation.
  • Ongoing improvements and experiments.
🤖 How I work
I'm a solo developer. I use AI coding tools openly, not instead of knowing how to build, but because one person can't do everything alone, and they help more of the right work actually ship.
My automation and workflow setup lives here:
👉 https://github.com/markheydon/github-workflows
🚀 Key projects
❤️ Supporting my work
If you find my work useful, you can support it via GitHub Sponsors:
👉 https://github.com/sponsors/markheydon
It helps fund hosting, CI, and ongoing maintenance of the public tools on this board. Open source alone doesn't pay the bills, but sponsorship and paid work help keep that work production-quality.

Pinned
Loading
  1. solo-dev-boardsolo-dev-boardPublic
    
A .NET Blazor app for solo developers to manage GitHub workloads across multiple repositories in one unified interface.

    C#
1

  2. the-teachings-of-monkeythe-teachings-of-monkeyPublic
    
An open source Hugo site archiving the wisdom, chaos, and camp teachings of the cult TV series Monkey (Saiyūki).

    Python
  3. monolog-wp-climonolog-wp-cliPublic
    
Extension for Monolog to support outputting to WP-CLI (The WordPress command line interface) when running wp command lines.

    PHP
10

3

  4. avd-occasionalavd-occasionalPublic
    
Cost-effective Azure Virtual Desktop setup using Bicep Infrastructure as Code. Deploy and manage a personal desktop for occasional work sessions with minimal costs.

    PowerShell
1

  5. freeagent-dotnetfreeagent-dotnetPublic
    
Open source FreeAgent API Client for .NET.

    C#
  6. import-to-plannerimport-to-plannerPublic
    
Single-use Blazor utility to import tasks from CSV into Microsoft Planner.

    C#

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
markheydon (Mark Heydon) · GitHub
Skip to content
View markheydon's full-sized avatar
5
followers
 · 4
following

Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Highlights
  • 
Pro

Organizations
@mhcg

Block or report markheydon

Block user

Prevent this user from interacting with your repositories and sending you notifications.
Learn more about blocking users.


You must be logged in to block users.


Content in all repositories owned by your account will be closed.


Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.

Report abuse

Contact GitHub support about this user’s behavior.
Learn more about reporting abuse.

Report abuse
markheydon/README.md
Hi, I'm Mark 👋
Solo C#/.NET developer. I build practical tools for Microsoft 365 Business and small-business day-to-day ops. Passionate about open source: I design, ship, and keep a lot of that work maintained.
🔧 What I'm working on
I maintain a live project board showing my current work across multiple repositories:
👉 Mark's Workboard
This includes:
  • Open-source libraries (e.g. FreeAgent integrations).
  • Internal tools and automation.
  • Ongoing improvements and experiments.
🤖 How I work
I'm a solo developer. I use AI coding tools openly, not instead of knowing how to build, but because one person can't do everything alone, and they help more of the right work actually ship.
My automation and workflow setup lives here:
👉 https://github.com/markheydon/github-workflows
🚀 Key projects
❤️ Supporting my work
If you find my work useful, you can support it via GitHub Sponsors:
👉 https://github.com/sponsors/markheydon
It helps fund hosting, CI, and ongoing maintenance of the public tools on this board. Open source alone doesn't pay the bills, but sponsorship and paid work help keep that work production-quality.

Pinned
Loading
  1. solo-dev-boardsolo-dev-boardPublic
    
A .NET Blazor app for solo developers to manage GitHub workloads across multiple repositories in one unified interface.

    C#
1

  2. the-teachings-of-monkeythe-teachings-of-monkeyPublic
    
An open source Hugo site archiving the wisdom, chaos, and camp teachings of the cult TV series Monkey (Saiyūki).

    Python
  3. monolog-wp-climonolog-wp-cliPublic
    
Extension for Monolog to support outputting to WP-CLI (The WordPress command line interface) when running wp command lines.

    PHP
10

3

  4. avd-occasionalavd-occasionalPublic
    
Cost-effective Azure Virtual Desktop setup using Bicep Infrastructure as Code. Deploy and manage a personal desktop for occasional work sessions with minimal costs.

    PowerShell
1

  5. freeagent-dotnetfreeagent-dotnetPublic
    
Open source FreeAgent API Client for .NET.

    C#
  6. import-to-plannerimport-to-plannerPublic
    
Single-use Blazor utility to import tasks from CSV into Microsoft Planner.

    C#

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
markheydon (Mark Heydon) · GitHub
Skip to content
View markheydon's full-sized avatar
5
followers
 · 4
following

Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Achievements
Achievement: Pair Extraordinairex4Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: StarstruckAchievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor
Highlights
  • 
Pro

Organizations
@mhcg

Block or report markheydon

Block user

Prevent this user from interacting with your repositories and sending you notifications.
Learn more about blocking users.


You must be logged in to block users.


Content in all repositories owned by your account will be closed.


Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.

Report abuse

Contact GitHub support about this user’s behavior.
Learn more about reporting abuse.

Report abuse
markheydon/README.md
Hi, I'm Mark 👋
Solo C#/.NET developer. I build practical tools for Microsoft 365 Business and small-business day-to-day ops. Passionate about open source: I design, ship, and keep a lot of that work maintained.
🔧 What I'm working on
I maintain a live project board showing my current work across multiple repositories:
👉 Mark's Workboard
This includes:
  • Open-source libraries (e.g. FreeAgent integrations).
  • Internal tools and automation.
  • Ongoing improvements and experiments.
🤖 How I work
I'm a solo developer. I use AI coding tools openly, not instead of knowing how to build, but because one person can't do everything alone, and they help more of the right work actually ship.
My automation and workflow setup lives here:
👉 https://github.com/markheydon/github-workflows
🚀 Key projects
❤️ Supporting my work
If you find my work useful, you can support it via GitHub Sponsors:
👉 https://github.com/sponsors/markheydon
It helps fund hosting, CI, and ongoing maintenance of the public tools on this board. Open source alone doesn't pay the bills, but sponsorship and paid work help keep that work production-quality.

Pinned
Loading
  1. solo-dev-boardsolo-dev-boardPublic
    
A .NET Blazor app for solo developers to manage GitHub workloads across multiple repositories in one unified interface.

    C#
1

  2. the-teachings-of-monkeythe-teachings-of-monkeyPublic
    
An open source Hugo site archiving the wisdom, chaos, and camp teachings of the cult TV series Monkey (Saiyūki).

    Python
  3. monolog-wp-climonolog-wp-cliPublic
    
Extension for Monolog to support outputting to WP-CLI (The WordPress command line interface) when running wp command lines.

    PHP
10

3

  4. avd-occasionalavd-occasionalPublic
    
Cost-effective Azure Virtual Desktop setup using Bicep Infrastructure as Code. Deploy and manage a personal desktop for occasional work sessions with minimal costs.

    PowerShell
1

  5. freeagent-dotnetfreeagent-dotnetPublic
    
Open source FreeAgent API Client for .NET.

    C#
  6. import-to-plannerimport-to-plannerPublic
    
Single-use Blazor utility to import tasks from CSV into Microsoft Planner.

    C#