explorer: Remove the env var config

- Remove custom-environment-variables.json: nothing sets its
  variables, and PREFERRED_SEEDS mapped to a key the app never reads
- Remove deploymentId: only Vercel set it, and we don't deploy there
- Always show the self-hosting hint in parse errors, as before
- Document local.json as the way to configure a build

explorer/README.md

@@ -42,10 +42,10 @@ There are several ways to deploy the UI publicly. Here are two common options:
    `explorer/` to create a build for deployment
 2. Configure your web server to serve the contents of the `/build` directory
 
-**Using Vercel (or similar static file hosting):**
+**Using static file hosting:**
 
 1. Fork this repository to create your own version
-2. Configure your Vercel account to deploy the forked repository
+2. Configure your hosting provider to deploy the forked repository
 
 **Add Rewrite Rules for Client-Side Routing**
 
@@ -74,21 +74,12 @@ There are two ways to configure the UI: **at build time** and **at run time**.
 
 ### Build-Time Configuration
 
-This method is recommended when deploying to static hosting platforms such as
-Vercel.
-
-#### Option 1: Create a `local.json` file
+This method is recommended when deploying to static hosting platforms.
 
 1. Copy [`default.json`][def] to a new file in the same directory called
    `local.json`.
 2. Modify the properties in `local.json` to suit your setup.
 
-#### Option 2: Use environment variables
-
-1. Refer to [`custom-environment-variables.json`][env] for a list of supported
-   environment variables.
-2. Set the desired variables in your environment before building the UI.
-
 > For advanced configuration options, refer to the [`node-config`][nco]
 > documentation.
 
@@ -230,7 +221,6 @@ The UI is distributed under the terms of GPLv3. See [LICENSE][lic] for details.
 [app]: https://radicle.network
 [con]: ../CONTRIBUTING.md
 [def]: ./config/default.json
-[env]: ./config/custom-environment-variables.json
 [iss]:
   https://radicle.network/nodes/iris.radicle.network/rad:z4V1sjrXqjvFdnCUbxPFqd5p4DtH5/issues
 [lic]: ./LICENSE

explorer/config/custom-environment-variables.json

@@ -1,17 +0,0 @@
-{
-  "nodes": {
-    "fallbackPublicExplorer": "FALLBACK_PUBLIC_EXPLORER",
-    "defaultHttpdPort": "DEFAULT_HTTPD_PORT",
-    "defaultLocalHttpdPort": "DEFAULT_LOCAL_HTTPD_PORT",
-    "defaultHttpdScheme": "DEFAULT_HTTPD_SCHEME"
-  },
-  "source": {
-    "commitsPerPage": "COMMITS_PER_PAGE"
-  },
-  "supportWebsite": "SUPPORT_WEBSITE",
-  "deploymentId": "VERCEL_DEPLOYMENT_ID",
-  "fallbackPreferredSeed": {
-    "__name": "PREFERRED_SEEDS",
-    "__format": "json"
-  }
-}

explorer/config/default.json

@@ -10,7 +10,6 @@
     "commitsPerPage": 30
   },
   "supportWebsite": "https://radicle.zulipchat.com",
-  "deploymentId": null,
   "preferredSeeds": [
     {
       "hostname": "rosa.radicle.network",

explorer/http-client/lib/fetcher.ts

@@ -3,7 +3,6 @@
 
 import type { ZodIssue, ZodType, TypeOf } from "zod";
 
-import config from "@app/lib/config";
 import {
   isOutdated,
   minimumSupportedVersion,
@@ -68,11 +67,8 @@ export class ResponseParseError extends Error {
         ? ` It runs radicle-httpd ${releaseNumber(nodeVersion)}, but explorer needs ${minimumSupportedVersion} or newer. Its operator should upgrade it.`
         : "";
     this.description =
-      `${node} sent a response that radicle-explorer can’t parse.${outdated}`.concat(
-        config.deploymentId
-          ? ""
-          : " If you are self-hosting radicle-explorer, try to clear the browser’s localStorage and the cache.",
-      );
+      `${node} sent a response that radicle-explorer can’t parse.${outdated}` +
+      " If you are self-hosting radicle-explorer, try to clear the browser’s localStorage and the cache.";
 
     this.method = method;
     this.path = path;
@@ -115,11 +111,6 @@ export class Fetcher {
     params: FetchParams,
     schema: T,
   ): Promise<TypeOf<T>> {
-    if (config.deploymentId) {
-      params.query ||= {};
-      params.query["deployment_id"] = config.deploymentId;
-    }
-
     const response = await this.fetch(params);
 
     if (!response.ok) {

explorer/module.d.ts

@@ -15,7 +15,6 @@ declare const buildTimeConfig: {
   source: {
     commitsPerPage: number;
   };
-  deploymentId: string | null;
   reactions: string[];
   supportWebsite: string;
   preferredSeeds: BaseUrl[];