diff --git a/renv/profile b/renv/profile
deleted file mode 100644
index 6d4023b5..00000000
--- a/renv/profile
+++ /dev/null
@@ -1 +0,0 @@
-lesson-requirements
diff --git a/renv/profiles/lesson-requirements/renv.lock b/renv/profiles/lesson-requirements/renv.lock
index ce572050..04502c35 100644
--- a/renv/profiles/lesson-requirements/renv.lock
+++ b/renv/profiles/lesson-requirements/renv.lock
@@ -1,6 +1,6 @@
 {
   "R": {
-    "Version": "4.3.2",
+    "Version": "4.3.0",
     "Repositories": [
       {
         "Name": "CRAN",
@@ -63,6 +63,16 @@
       ],
       "Hash": "8c7115cd3a0e048bda2a7cd110549f7a"
     },
+    "PROJ": {
+      "Package": "PROJ",
+      "Version": "0.4.0",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R"
+      ],
+      "Hash": "fa50a399b8c887285a1a02c748a4bfe8"
+    },
     "R6": {
       "Package": "R6",
       "Version": "2.5.1",
@@ -104,16 +114,6 @@
       ],
       "Hash": "cad6cf7f1d5f6e906700b9d3e718c796"
     },
-    "assertthat": {
-      "Package": "assertthat",
-      "Version": "0.2.1",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Requirements": [
-        "tools"
-      ],
-      "Hash": "50c838a310445e954bc13f26f26a6ecf"
-    },
     "backports": {
       "Package": "backports",
       "Version": "1.4.1",
@@ -312,6 +312,13 @@
       ],
       "Hash": "f20c47fd52fae58b4e377c37bb8c335b"
     },
+    "commonmark": {
+      "Package": "commonmark",
+      "Version": "1.9.0",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Hash": "d691c61bff84bd63c383874d2d0c3307"
+    },
     "conflicted": {
       "Package": "conflicted",
       "Version": "1.2.0",
@@ -360,6 +367,30 @@
       ],
       "Hash": "e8a1e41acf02548751f45c718d55aa6a"
     },
+    "crosstalk": {
+      "Package": "crosstalk",
+      "Version": "1.2.0",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R6",
+        "htmltools",
+        "jsonlite",
+        "lazyeval"
+      ],
+      "Hash": "6aa54f69598c32177e920eb3402e8293"
+    },
+    "crsmeta": {
+      "Package": "crsmeta",
+      "Version": "0.3.0",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "methods"
+      ],
+      "Hash": "76ad515a0acb138c0e93f017c7aefd11"
+    },
     "curl": {
       "Package": "curl",
       "Version": "5.2.0",
@@ -489,30 +520,6 @@
       ],
       "Hash": "bb0eec2fe32e88d9e2836c2f73ea2077"
     },
-    "emo": {
-      "Package": "emo",
-      "Version": "0.0.0.9000",
-      "Source": "GitHub",
-      "RemoteType": "github",
-      "RemoteHost": "api.github.com",
-      "RemoteRepo": "emo",
-      "RemoteUsername": "hadley",
-      "RemoteRef": "HEAD",
-      "RemoteSha": "3f03b11491ce3d6fc5601e210927eff73bf8e350",
-      "Requirements": [
-        "R",
-        "assertthat",
-        "crayon",
-        "glue",
-        "lubridate",
-        "magrittr",
-        "purrr",
-        "rlang",
-        "stringr",
-        "utils"
-      ],
-      "Hash": "10f2391a926b0087a671ed9965ea30a3"
-    },
     "evaluate": {
       "Package": "evaluate",
       "Version": "0.23",
@@ -711,6 +718,20 @@
       ],
       "Hash": "d6db1667059d027da730decdc214b959"
     },
+    "gridExtra": {
+      "Package": "gridExtra",
+      "Version": "2.3",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "grDevices",
+        "graphics",
+        "grid",
+        "gtable",
+        "utils"
+      ],
+      "Hash": "7d7f283939f563670a697165b2cf5560"
+    },
     "gtable": {
       "Package": "gtable",
       "Version": "0.3.4",
@@ -799,6 +820,21 @@
       ],
       "Hash": "2d7b3857980e0e0d0a1fd6f11928ab0f"
     },
+    "htmlwidgets": {
+      "Package": "htmlwidgets",
+      "Version": "1.6.2",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "grDevices",
+        "htmltools",
+        "jsonlite",
+        "knitr",
+        "rmarkdown",
+        "yaml"
+      ],
+      "Hash": "a865aa85bcb2697f47505bfd70422471"
+    },
     "httr": {
       "Package": "httr",
       "Version": "1.4.7",
@@ -814,6 +850,25 @@
       ],
       "Hash": "ac107251d9d9fd72f0ca8049988f1d7f"
     },
+    "httr2": {
+      "Package": "httr2",
+      "Version": "0.2.3",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "R6",
+        "cli",
+        "curl",
+        "glue",
+        "magrittr",
+        "openssl",
+        "rappdirs",
+        "rlang",
+        "withr"
+      ],
+      "Hash": "193bb297368afbbb42dc85784a46b36e"
+    },
     "ids": {
       "Package": "ids",
       "Version": "1.0.1",
@@ -898,6 +953,51 @@
       ],
       "Hash": "7c5e89f04e72d6611c77451f6331a091"
     },
+    "lazyeval": {
+      "Package": "lazyeval",
+      "Version": "0.2.2",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R"
+      ],
+      "Hash": "d908914ae53b04d4c0c0fd72ecc35370"
+    },
+    "leaflet": {
+      "Package": "leaflet",
+      "Version": "2.1.2",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "RColorBrewer",
+        "base64enc",
+        "crosstalk",
+        "htmltools",
+        "htmlwidgets",
+        "leaflet.providers",
+        "magrittr",
+        "markdown",
+        "methods",
+        "png",
+        "raster",
+        "scales",
+        "sp",
+        "stats",
+        "viridis"
+      ],
+      "Hash": "ac2c7f21c2a6d2579eed8aaae4c42610"
+    },
+    "leaflet.providers": {
+      "Package": "leaflet.providers",
+      "Version": "1.9.0",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R"
+      ],
+      "Hash": "d3082a7beac4a1aeb96100ff06265d7e"
+    },
     "lifecycle": {
       "Package": "lifecycle",
       "Version": "1.0.4",
@@ -934,6 +1034,19 @@
       ],
       "Hash": "7ce2733a9826b3aeb1775d56fd305472"
     },
+    "markdown": {
+      "Package": "markdown",
+      "Version": "1.7",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "commonmark",
+        "utils",
+        "xfun"
+      ],
+      "Hash": "0ffaea87c070a56d140ce00b0727b278"
+    },
     "memoise": {
       "Package": "memoise",
       "Version": "2.0.1",
@@ -1015,6 +1128,20 @@
       ],
       "Hash": "a623a2239e642806158bc4dc3f51565d"
     },
+    "nominatimlite": {
+      "Package": "nominatimlite",
+      "Version": "0.2.1",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "dplyr",
+        "jsonlite",
+        "sf",
+        "utils"
+      ],
+      "Hash": "af32e9d6c54aa8dee7eedaf52cde4bcc"
+    },
     "openssl": {
       "Package": "openssl",
       "Version": "2.1.1",
@@ -1025,6 +1152,27 @@
       ],
       "Hash": "2a0dc8c6adfb6f032e4d4af82d258ab5"
     },
+    "osmdata": {
+      "Package": "osmdata",
+      "Version": "0.2.3",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "Rcpp",
+        "curl",
+        "httr2",
+        "lubridate",
+        "magrittr",
+        "methods",
+        "reproj",
+        "rvest",
+        "tibble",
+        "utils",
+        "xml2"
+      ],
+      "Hash": "bb59387ab2e4a01078560977e34b53a0"
+    },
     "pillar": {
       "Package": "pillar",
       "Version": "1.9.0",
@@ -1052,28 +1200,25 @@
       ],
       "Hash": "01f28d4278f15c76cddbea05899c5d6f"
     },
-    "prettyunits": {
-      "Package": "prettyunits",
-      "Version": "1.2.0",
+    "png": {
+      "Package": "png",
+      "Version": "0.1-8",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
         "R"
       ],
-      "Hash": "6b01fc98b1e86c4f705ce9dcfd2f57c7"
+      "Hash": "bd54ba8a0a5faded999a7aab6e46b374"
     },
-    "prismatic": {
-      "Package": "prismatic",
-      "Version": "1.1.1",
+    "prettyunits": {
+      "Package": "prettyunits",
+      "Version": "1.2.0",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
-        "R",
-        "farver",
-        "grDevices",
-        "graphics"
+        "R"
       ],
-      "Hash": "faa2193fdec94a45b4390aefc1280a62"
+      "Hash": "6b01fc98b1e86c4f705ce9dcfd2f57c7"
     },
     "prismatic": {
       "Package": "prismatic",
@@ -1115,6 +1260,16 @@
       ],
       "Hash": "f4625e061cb2865f111b47ff163a5ca6"
     },
+    "proj4": {
+      "Package": "proj4",
+      "Version": "1.0-12",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R"
+      ],
+      "Hash": "38d2a6c550f29221b59580077774cf26"
+    },
     "proxy": {
       "Package": "proxy",
       "Version": "0.4-27",
@@ -1174,6 +1329,20 @@
       ],
       "Hash": "5e3c5dc0b071b21fa128676560dbe94d"
     },
+    "raster": {
+      "Package": "raster",
+      "Version": "3.6-20",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "Rcpp",
+        "methods",
+        "sp",
+        "terra"
+      ],
+      "Hash": "ebebd9f0f203a129eb2da96470191b82"
+    },
     "readr": {
       "Package": "readr",
       "Version": "2.1.5",
@@ -1261,6 +1430,19 @@
       ],
       "Hash": "1425f91b4d5d9a8f25352c44a3d914ed"
     },
+    "reproj": {
+      "Package": "reproj",
+      "Version": "0.4.3",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "PROJ",
+        "R",
+        "crsmeta",
+        "proj4"
+      ],
+      "Hash": "35bffc8308f82594dcf28e374488d0cb"
+    },
     "rlang": {
       "Package": "rlang",
       "Version": "1.1.3",
@@ -1415,6 +1597,23 @@
       ],
       "Hash": "f432b3379fb1a47046e253468b6b6b6d"
     },
+    "sp": {
+      "Package": "sp",
+      "Version": "1.6-1",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "grDevices",
+        "graphics",
+        "grid",
+        "lattice",
+        "methods",
+        "stats",
+        "utils"
+      ],
+      "Hash": "ca27b2643e3593b7688244d035f2cd92"
+    },
     "stringi": {
       "Package": "stringi",
       "Version": "1.8.3",
@@ -1662,6 +1861,19 @@
       ],
       "Hash": "c03fa420630029418f7e6da3667aac4a"
     },
+    "viridis": {
+      "Package": "viridis",
+      "Version": "0.6.3",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "ggplot2",
+        "gridExtra",
+        "viridisLite"
+      ],
+      "Hash": "0d774f552202add033efc43a30293b3f"
+    },
     "viridisLite": {
       "Package": "viridisLite",
       "Version": "0.4.2",
@@ -1705,13 +1917,6 @@
       "Repository": "CRAN",
       "Hash": "c6abfa47a46d281a7d5159d0a8891e88"
     },
-    "whisker": {
-      "Package": "whisker",
-      "Version": "0.4.1",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "c6abfa47a46d281a7d5159d0a8891e88"
-    },
     "withr": {
       "Package": "withr",
       "Version": "3.0.0",