diff --git a/ogc/bblocks/templates/slate/index.html.md b/ogc/bblocks/templates/slate/index.html.md
deleted file mode 100644
index ae9b960..0000000
--- a/ogc/bblocks/templates/slate/index.html.md
+++ /dev/null
@@ -1,227 +0,0 @@
----
-title: ${bblock.name} (${bblock.itemClass.capitalize()})
-% if bblock.examples:
-<%
-  lang_aliases = {
-    'txt': 'plaintext',
-    'json-ld': 'jsonld',
-    'ttl': 'turtle',
-  }
-  known_langs = {
-    'json': 'JSON',
-    'turtle': 'RDF/Turtle',
-    'plaintext': 'Plain text',
-    'yaml': 'YAML',
-    'java': 'Java',
-    'python': 'Python',
-    'javascript': 'Javascript',
-    'jsonld': 'JSON-LD',
-  }
-  langs = {lang_aliases.get(snippet['language'].lower(), snippet['language']): True
-           for example in bblock.examples for snippet in example.get('snippets', []) if snippet.get('code', '').strip()}
-%>
-  % if len(langs) > 1:
-language_tabs:
-    % for lang in langs:
-  - ${lang}${(': ' + known_langs[lang]) if lang in known_langs else ''}
-    % endfor
-  % endif
-% endif
-
-toc_footers:
-  - Version ${bblock.version}
-  - <a href='#'>${bblock.name}</a>
-  - <a href='https://blocks.ogc.org/register.html'>Building Blocks register</a>
-
-search: true
-
-code_clipboard: true
-
-meta:
-  - name: ${bblock.name} (${bblock.itemClass.capitalize()})
----
-<%
-import re, os, urllib.parse, json
-treedocviewer_options = '&amp;option={}'.format(urllib.parse.quote_plus('{"showTable": false}'))
-%>
-
-${'#'} ${bblock.name} `${bblock.identifier}`
-
-${bblock.abstract}
-
-<p class="status">
-    <span data-rainbow-uri="http://www.opengis.net/def/status">Status</span>:
-    <a href="http://www.opengis.net/def/status/${bblock.status}" target="_blank" data-rainbow-uri>${bblock.status.replace('-', ' ').capitalize()}</a>
-</p>
-
-% if bblock.validationPassed:
-<aside class="success">
-This building block is \
-% if bblock.testOutputs:
-<strong><a href="${bblock.testOutputs}" target="_blank">valid</a></strong>
-% else:
-<strong>valid</strong>
-% endif
-</aside>
-% else:
-<aside class="warning">
-Validation for this building block has \
-% if bblock.testOutputs:
-<strong><a href="${bblock.testOutputs}" target="_blank">failed</a></strong>
-% else:
-<strong>failed</strong>
-% endif
-</aside>
-% endif
-
-% if bblock.description:
-${'#'} Description
-
-${bblock.description.replace('@@assets@@', assets_rel or '')}
-% endif
-% if bblock.examples:
-${'#'} Examples
-  % for example in bblock.examples:
-
-${'##'} ${example.get('title', f"Example {loop.index + 1}")}
-
-    % for snippet in example.get('snippets', []):
-% if snippet.get('code', '').strip():
-
-<%
-  snippet_lang = lang_aliases.get(snippet['language'].lower(), snippet['language'])
-  snippet_url = snippet.get('url')
-  snippet_expand = snippet.get('expand-level', 2)
-%>
-```${snippet_lang}
-${snippet['code']}
-```
-  % if snippet_url:
-
-<blockquote class="lang-specific ${snippet_lang}">
-  <p class="example-links">
-    <a target="_blank" href="${snippet_url}">Open in new window</a>
-    % if snippet_lang == 'json':
-    <a target="_blank" href="https://avillar.github.io/TreedocViewer/?dataParser=json&amp;dataUrl=${urllib.parse.quote_plus(snippet_url)}&amp;expand=${snippet_expand}${treedocviewer_options}">View on JSON Viewer</a></p>
-    % elif snippet_lang in ('json-ld', 'jsonld'):
-    <a target="_blank" href="https://json-ld.org/playground/#json-ld=${urllib.parse.quote_plus(snippet_url)}">View on JSON-LD Playground</a>
-    % elif snippet_lang == 'yaml':
-    <a target="_blank" href="https://avillar.github.io/TreedocViewer/?dataParser=yaml&amp;dataUrl=${urllib.parse.quote_plus(snippet_url)}&amp;expand=${snippet_expand}${treedocviewer_options}">View on YAML Viewer</a>
-    % endif
-</blockquote>
-
-  % endif
-% endif
-
-    % endfor
-    % if example.get('content'):
-${example['content'].replace('@@assets@@', assets_rel or '')}
-
-    %endif
-  % endfor
-% endif
-% if bblock.schema.is_file():
-
-${'#'} JSON Schema
-
-```yaml--schema
-${bblock.annotated_schema_contents}
-```
-
-> <a target="_blank" href="https://avillar.github.io/TreedocViewer/?dataParser=yaml&amp;dataUrl=${urllib.parse.quote_plus(bblock.metadata['schema']['application/yaml'])}&amp;expand=2${treedocviewer_options}">View on YAML Viewer</a>
-
-Links to the schema:
-
-* YAML version: <a href="${bblock.metadata['schema']['application/yaml']}" target="_blank">${bblock.metadata['schema']['application/yaml']}</a>
-* JSON version: <a href="${bblock.metadata['schema']['application/json']}" target="_blank">${bblock.metadata['schema']['application/json']}</a>
-
-% endif
-% if bblock.ldContext:
-
-${'#'} JSON-LD Context
-
-```json--ldContext
-${bblock.jsonld_context_contents}
-```
-
-> <a target="_blank" href="https://json-ld.org/playground/#json-ld=${urllib.parse.quote_plus(bblock.ldContext)}">View on JSON-LD Playground</a>
-
-You can find the full JSON-LD context here:
-<a href="${bblock.ldContext}" target="_blank">${bblock.ldContext}</a>
-
-% endif
-% if bblock.shaclRules:
-${'#'} Validation
-
-${'##'} SHACL Shapes
-
-The following sets of SHACL shapes are used for validating this building block:
-
-  % for shacl_bblock_id, shacl_rules in bblock.shaclRules.items():
-    % if bblocks_register.get(shacl_bblock_id):
-* ${bblocks_register.get(shacl_bblock_id).get('name')} <small><code>${shacl_bblock_id}</code></small>
-    % else:
-* `${shacl_bblock_id}`
-    % endif
-    % for rule in shacl_rules:
-      % if rule.startswith('http://') or rule.startswith('https://'):
-  * [${rule}](${rule})
-      % else:
-  * `${rule}`
-      % endif
-    % endfor
-  % endfor
-
-% endif
-% if bblock.transforms:
-${'#'} Transforms
-
-  % for transform in bblock.transforms:
-${'## ' + transform['title']} <small>${transform['type']}</small>
-
-```
-${transform['code']}
-```
-    % if len(transform['mime-types']['source']) > 1:
-* Source MIME types:
-      % for mt in transform['mime-types']['source']:
-  * `${mt}`
-      % endfor
-    % else:
-* Source MIME type: `${transform['mime-types']['source'][0]}`
-    % endif
-* Target MIME type: `${transform['mime-types']['target']}`
-* Types of outputs generated:
-    % for t in transform['output-types']:
-  * ${t['label']} (`${t['identifier']}`) 
-    % endfor
-* Link: [${transform['ref']}](${transform['ref']})
-
-  % endfor
-% endif
-% if bblock.sources:
-${'#'} References
-
-  % for source in bblock.sources:
-    % if source.get('link'):
-* [${source['title']}](${source['link']})
-    % else:
-* ${source['title']}
-    % endif
-  % endfor
-
-% endif
-% if git_repo:
-${'#'} For developers
-
-The source code for this Building Block can be found in the following repository:
-
-* URL: <a href="${git_repo}" target="_blank">${git_repo}</a>
-* Path:
-% if git_repo.startswith('https://github.com/'):
-<code><a href="${git_repo}/blob/HEAD/${git_path}" target="_blank">${git_path}</a></code>
-% else:
-`${git_path}`
-% endif
-
-% endif
\ No newline at end of file
diff --git a/ogc/bblocks/templates/slate/metadata.yaml b/ogc/bblocks/templates/slate/metadata.yaml
deleted file mode 100644
index e947975..0000000
--- a/ogc/bblocks/templates/slate/metadata.yaml
+++ /dev/null
@@ -1 +0,0 @@
-template-file: index.html.md