feat: blog post cold start improvements

[levivannoort]

What does this PR do?

Adds a new blog to the website.

Test Plan

N/A

Related PRs and Issues

N/A

Have you read the Contributing Guidelines on issues?

Yes

Summary by CodeRabbit

• Documentation
  • Added a new author profile for Levi van Noort.
  • Published a blog post detailing cold-start performance work for Appwrite Sites, including observed bottlenecks, experimental optimizations (faster extraction and reduced runtime footprint), measured improvements, and redeployment instructions.
  • Included quantified results and a “what’s next” section outlining future optimization plans.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: c6a68a03-2284-40c0-a8d7-f6b38038b362

📥 Commits

Reviewing files that changed from the base of the PR and between dc75779 and 7bf0c31.

📒 Files selected for processing (1)

• src/routes/blog/post/reducing-cold-starts-appwrite-sites/+page.markdoc

✅ Files skipped from review due to trivial changes (1)

• src/routes/blog/post/reducing-cold-starts-appwrite-sites/+page.markdoc

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Walkthrough

Adds two new Markdoc pages under src/routes/blog: an author profile for Levi van Noort with frontmatter metadata (layout, name, slug, role, bio, avatar), and a blog post "How we reduced cold start times on Appwrite Sites" with frontmatter and content describing observability, igzip-based extraction optimization, Node.js file-tracing to reduce artifacts, measured template size and cold-start reductions (reported ~30–50%), redeploy instructions, and next steps. Both files are new additions; no existing files were modified.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'feat: blog post cold start improvements' directly relates to the main changes: adding a new blog post about cold start optimizations and creating an author profile page.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch CLO-4110

📝 Coding Plan

• Generate coding plan for human review comments

Warning

Tools execution failed with the following error:

Failed to run tools: Stream setup permanently failed: 13 INTERNAL: Received RST_STREAM with code 2 (Internal server error)

---

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[coderabbitai]

🧹 Nitpick comments (1)

src/routes/blog/post/reducing-cold-starts-appwrite-sites/+page.markdoc (1)

48-48: Minor: Inconsistent dash formatting.

The sentence has inconsistent spacing around dashes: "download phase - previously" (space-dash-space) vs "steps-dropped" (no spaces). Consider using em-dashes consistently:

✏️ Suggested fix

-Those smaller artifacts translated directly into faster cold starts. With build outputs reduced by up to 99%, the download phase - previously one of the more costly steps-dropped from multiple seconds to just 100–200 milliseconds. Extraction saw a similar improvement, going from regular 4–7 second spikes down to around 200–400 milliseconds. Together, these two phases went from dominating the cold-start timeline to being barely noticeable.
+Those smaller artifacts translated directly into faster cold starts. With build outputs reduced by up to 99%, the download phase—previously one of the more costly steps—dropped from multiple seconds to just 100–200 milliseconds. Extraction saw a similar improvement, going from regular 4–7 second spikes down to around 200–400 milliseconds. Together, these two phases went from dominating the cold-start timeline to being barely noticeable.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/routes/blog/post/reducing-cold-starts-appwrite-sites/`+page.markdoc at
line 48, The sentence has inconsistent dash spacing ("download phase -
previously" vs "steps-dropped"); update the punctuation in the Markdoc content
so both occurrences use a consistent em-dash style (e.g., change "download phase
- previously" to "download phase—previously" and "steps-dropped" to
"steps—dropped") ensuring the same em-dash usage across the paragraph.

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Nitpick comments:
In `@src/routes/blog/post/reducing-cold-starts-appwrite-sites/`+page.markdoc:
- Line 48: The sentence has inconsistent dash spacing ("download phase -
previously" vs "steps-dropped"); update the punctuation in the Markdoc content
so both occurrences use a consistent em-dash style (e.g., change "download phase
- previously" to "download phase—previously" and "steps-dropped" to
"steps—dropped") ensuring the same em-dash usage across the paragraph.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: bfeea003-300d-4c67-9e3b-dba3340513a1

📥 Commits

Reviewing files that changed from the base of the PR and between 0154be8 and dc75779.

⛔ Files ignored due to path filters (3)

• bun.lock is excluded by !**/*.lock
• static/images/avatars/levi.png is excluded by !**/*.png
• static/images/blog/reducing-cold-starts-appwrite-sites/cover.png is excluded by !**/*.png

📒 Files selected for processing (2)

• src/routes/blog/author/levi-van-noort/+page.markdoc
• src/routes/blog/post/reducing-cold-starts-appwrite-sites/+page.markdoc

[greptile-apps]

Greptile Summary

This PR publishes a new blog post covering cold-start performance improvements for Appwrite Sites (igzip extraction, Node file tracing) and introduces a new author profile for Levi van Noort. It also adds a "contain" display mode to Image.svelte to prevent chart/graph images from being cropped to the standard 16:9 aspect ratio.

Confidence Score: 5/5

Safe to merge; only remaining finding is a minor design concern about the sentinel-string approach in Image.svelte

All previously flagged blocking issues (missing image file, run-on text) are resolved. The one new comment is P2 style feedback that does not affect correctness or production behavior.

src/markdoc/nodes/Image.svelte - the sentinel-string pattern is worth revisiting if more display modes are added in the future

Important Files Changed

Filename	Overview
src/markdoc/nodes/Image.svelte	Adds a contain display mode triggered by the title attribute sentinel value; functional but reserves the word contain as an image title forever
src/routes/blog/post/reducing-cold-starts-appwrite-sites/+page.markdoc	New blog post on cold-start optimizations; previously flagged missing image replaced with two correctly named image files
src/routes/blog/author/levi-van-noort/+page.markdoc	New author profile for Levi van Noort with correct fields and avatar path
.optimize-cache.json	Cache hashes added for the new avatar and blog images; no issues

_{Reviews (8): Last reviewed commit: "Update src/routes/blog/post/reducing-col..." | Re-trigger Greptile}