Tutorials, analysis and reference notes on software and cloud infrastructure, from an engineer who came to it from industrial controls.https://rmrfconfusion.com/en-UShttps://rmrfconfusion.com/articles/placeholder-typography-specimen/https://rmrfconfusion.com/articles/placeholder-typography-specimen/PLACEHOLDER CONTENT - not a real article. This page exists to render every element the article template supports, so layout and CSS can be tuned against all of them at once. Delete it before the site goes live.Mon, 10 Aug 2026 00:00:00 GMT**This is placeholder content.** Nothing here is a real claim about anything. It exists so the article template can be evaluated with every element present at once. Body text sits at the default measure. This paragraph is here to give the column a realistic amount of prose to be judged against, because a layout that looks right with two sentences often falls apart with two hundred words. Line height, measure, and the spacing between block elements are all easier to judge at length than in isolation. A second paragraph, to check the vertical rhythm between them. Inline elements appear here: some `inline code`, a [link to another page](/articles/), **bold text**, and *italic text* for emphasis. ## A level-two heading Level-two headings carry a top border and become steps in the `HowTo` structured data when an article's type is `tutorial`. They also populate the table of contents in the right-hand rail, which only appears when there are more than two of them. ### A level-three heading Level-three headings are indented in the table of contents and carry no border. ## Code blocks Short blocks and long blocks behave differently, so both are here. A short one: ```bash npm run build ``` And a long line, which must scroll inside its own box and must never make the page scroll sideways: ```bash aws cloudformation deploy --region us-east-1 --stack-name placeholder-stack --template-file iac/placeholder.yaml --capabilities CAPABILITY_NAMED_IAM ``` A multi-line block with syntax highlighting: ```typescript export function placeholder(input: string): string[] { return input .split(',') .map((part) => part.trim()) .filter(Boolean); } ``` ## Lists An unordered list: - First item, short. - Second item, deliberately much longer so that it wraps onto a second line and the hanging indent can be checked against the bullet. - Third item. An ordered list: 1. First step. 2. Second step. 3. Third step. ## A table Tables need to stay readable and must scroll inside their own container rather than widening the page. | Field | Type | Required | Notes | |---|---|---|---| | `title` | string | yes | 10–75 characters | | `tldr` | string | yes | Answer-first, 80–400 characters | | `type` | enum | yes | Selects the structured data graph | | `scope` | enum | no | Defaults to `core` | ## A blockquote > Blockquotes are used sparingly, usually to set off a rule or a definition rather than > to quote a person. They carry a left border and muted text. ## A horizontal rule Above the rule. --- Below the rule. ## Closing The last block in an article should not collide with the topic links that follow it.2026-08-12T00:00:00.000Zplaceholder-alphaplaceholder-betaAndrewhttps://rmrfconfusion.com/articles/placeholder-analysis/https://rmrfconfusion.com/articles/placeholder-analysis/PLACEHOLDER CONTENT - not a real article. Type is `analysis`, which emits TechArticle structured data only, with no HowTo. Exists to give the index and filters density.Sat, 08 Aug 2026 00:00:00 GMTPlaceholder body. An `analysis` piece is opinionated argument rather than a procedure, so it emits no `HowTo` graph even though it still has headings. ## First section Body text. This article deliberately has only two headings, which is below the threshold for the table of contents rail - useful for checking that the layout still looks right when the rail is absent. ## Second section More body text, so the page has some length to it.2026-08-08T00:00:00.000Zplaceholder-betaAndrewhttps://rmrfconfusion.com/articles/placeholder-reference/https://rmrfconfusion.com/articles/placeholder-reference/PLACEHOLDER CONTENT - not a real article. Type is `reference`, which adds FAQPage structured data on top of TechArticle. Short by design.Wed, 05 Aug 2026 00:00:00 GMTPlaceholder body. Reference notes are short by design. This one also has an `updated` date later than its `published` date, so the "updated" line renders in the byline and in the article cards. ## The only section Body text.2026-08-11T00:00:00.000Zplaceholder-alphaAndrewhttps://rmrfconfusion.com/articles/placeholder-aside/https://rmrfconfusion.com/articles/placeholder-aside/PLACEHOLDER CONTENT - not a real article. Scope is `aside`, so this must NOT appear on the homepage, but must still be reachable from /articles/ and /topics/placeholder-gamma/.Sun, 02 Aug 2026 00:00:00 GMTPlaceholder body. The point of this one is the `scope: aside` behaviour - it should be absent from the homepage and present everywhere else. ## A section Body text.2026-08-02T00:00:00.000Zplaceholder-gammaAndrew